21243060

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 168

約数和(自身を含む): 70511616

約数和(自身を除く): 49268556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 47, 54, 60, 62, 81, 90, 93, 94, 108, 124, 135, 141, 155, 162, 180, 186, 188, 235, 243, 270, 279, 282, 310, 324, 372, 405, 423, 465, 470, 486, 540, 558, 564, 620, 705, 729, 810, 837, 846, 930, 940, 972, 1116, 1215, 1269, 1395, 1410, 1457, 1458, 1620, 1674, 1692, 1860, 2115, 2430, 2511, 2538, 2790, 2820, 2914, 2916, 3348, 3645, 3807, 4185, 4230, 4371, 4860, 5022, 5076, 5580, 5828, 6345, 7285, 7290, 7533, 7614, 8370, 8460, 8742, 10044, 11421, 12555, 12690, 13113, 14570, 14580, 15066, 15228, 16740, 17484, 19035, 21855, 22599, 22842, 25110, 25380, 26226, 29140, 30132, 34263, 37665, 38070, 39339, 43710, 45198, 45684, 50220, 52452, 57105, 65565, 68526, 75330, 76140, 78678, 87420, 90396, 112995, 114210, 118017, 131130, 137052, 150660, 157356, 171315, 196695, 225990, 228420, 236034, 262260, 342630, 354051, 393390, 451980, 472068, 590085, 685260, 708102, 786780, 1062153, 1180170, 1416204, 1770255, 2124306, 2360340, 3540510, 4248612, 5310765, 7081020, 10621530, 21243060]

約数ペア:

[(1, 21243060), (2, 10621530), (3, 7081020), (4, 5310765), (5, 4248612), (6, 3540510), (9, 2360340), (10, 2124306), (12, 1770255), (15, 1416204), (18, 1180170), (20, 1062153), (27, 786780), (30, 708102), (31, 685260), (36, 590085), (45, 472068), (47, 451980), (54, 393390), (60, 354051), (62, 342630), (81, 262260), (90, 236034), (93, 228420), (94, 225990), (108, 196695), (124, 171315), (135, 157356), (141, 150660), (155, 137052), (162, 131130), (180, 118017), (186, 114210), (188, 112995), (235, 90396), (243, 87420), (270, 78678), (279, 76140), (282, 75330), (310, 68526), (324, 65565), (372, 57105), (405, 52452), (423, 50220), (465, 45684), (470, 45198), (486, 43710), (540, 39339), (558, 38070), (564, 37665), (620, 34263), (705, 30132), (729, 29140), (810, 26226), (837, 25380), (846, 25110), (930, 22842), (940, 22599), (972, 21855), (1116, 19035), (1215, 17484), (1269, 16740), (1395, 15228), (1410, 15066), (1457, 14580), (1458, 14570), (1620, 13113), (1674, 12690), (1692, 12555), (1860, 11421), (2115, 10044), (2430, 8742), (2511, 8460), (2538, 8370), (2790, 7614), (2820, 7533), (2914, 7290), (2916, 7285), (3348, 6345), (3645, 5828), (3807, 5580), (4185, 5076), (4230, 5022), (4371, 4860)]