21669420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 64044288

約数和(自身を除く): 42374868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 43, 60, 74, 86, 111, 129, 148, 172, 185, 215, 222, 227, 258, 370, 430, 444, 454, 516, 555, 645, 681, 740, 860, 908, 1110, 1135, 1290, 1362, 1591, 2220, 2270, 2580, 2724, 3182, 3405, 4540, 4773, 6364, 6810, 7955, 8399, 9546, 9761, 13620, 15910, 16798, 19092, 19522, 23865, 25197, 29283, 31820, 33596, 39044, 41995, 47730, 48805, 50394, 58566, 83990, 95460, 97610, 100788, 117132, 125985, 146415, 167980, 195220, 251970, 292830, 361157, 503940, 585660, 722314, 1083471, 1444628, 1805785, 2166942, 3611570, 4333884, 5417355, 7223140, 10834710, 21669420]

約数ペア:

[(1, 21669420), (2, 10834710), (3, 7223140), (4, 5417355), (5, 4333884), (6, 3611570), (10, 2166942), (12, 1805785), (15, 1444628), (20, 1083471), (30, 722314), (37, 585660), (43, 503940), (60, 361157), (74, 292830), (86, 251970), (111, 195220), (129, 167980), (148, 146415), (172, 125985), (185, 117132), (215, 100788), (222, 97610), (227, 95460), (258, 83990), (370, 58566), (430, 50394), (444, 48805), (454, 47730), (516, 41995), (555, 39044), (645, 33596), (681, 31820), (740, 29283), (860, 25197), (908, 23865), (1110, 19522), (1135, 19092), (1290, 16798), (1362, 15910), (1591, 13620), (2220, 9761), (2270, 9546), (2580, 8399), (2724, 7955), (3182, 6810), (3405, 6364), (4540, 4773)]