21547080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:372

約数の個数: 128

約数和(自身を含む): 73094400

約数和(自身を除く): 51547320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 90, 108, 120, 135, 142, 180, 213, 216, 270, 281, 284, 355, 360, 426, 540, 562, 568, 639, 710, 843, 852, 1065, 1080, 1124, 1278, 1405, 1420, 1686, 1704, 1917, 2130, 2248, 2529, 2556, 2810, 2840, 3195, 3372, 3834, 4215, 4260, 5058, 5112, 5620, 6390, 6744, 7587, 7668, 8430, 8520, 9585, 10116, 11240, 12645, 12780, 15174, 15336, 16860, 19170, 19951, 20232, 25290, 25560, 30348, 33720, 37935, 38340, 39902, 50580, 59853, 60696, 75870, 76680, 79804, 99755, 101160, 119706, 151740, 159608, 179559, 199510, 239412, 299265, 303480, 359118, 399020, 478824, 538677, 598530, 718236, 798040, 897795, 1077354, 1197060, 1436472, 1795590, 2154708, 2394120, 2693385, 3591180, 4309416, 5386770, 7182360, 10773540, 21547080]

約数ペア:

[(1, 21547080), (2, 10773540), (3, 7182360), (4, 5386770), (5, 4309416), (6, 3591180), (8, 2693385), (9, 2394120), (10, 2154708), (12, 1795590), (15, 1436472), (18, 1197060), (20, 1077354), (24, 897795), (27, 798040), (30, 718236), (36, 598530), (40, 538677), (45, 478824), (54, 399020), (60, 359118), (71, 303480), (72, 299265), (90, 239412), (108, 199510), (120, 179559), (135, 159608), (142, 151740), (180, 119706), (213, 101160), (216, 99755), (270, 79804), (281, 76680), (284, 75870), (355, 60696), (360, 59853), (426, 50580), (540, 39902), (562, 38340), (568, 37935), (639, 33720), (710, 30348), (843, 25560), (852, 25290), (1065, 20232), (1080, 19951), (1124, 19170), (1278, 16860), (1405, 15336), (1420, 15174), (1686, 12780), (1704, 12645), (1917, 11240), (2130, 10116), (2248, 9585), (2529, 8520), (2556, 8430), (2810, 7668), (2840, 7587), (3195, 6744), (3372, 6390), (3834, 5620), (4215, 5112), (4260, 5058)]