18211620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 58899456

約数和(自身を除く): 40687836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 131, 140, 210, 262, 331, 393, 420, 524, 655, 662, 786, 917, 993, 1310, 1324, 1572, 1655, 1834, 1965, 1986, 2317, 2620, 2751, 3310, 3668, 3930, 3972, 4585, 4634, 4965, 5502, 6620, 6951, 7860, 9170, 9268, 9930, 11004, 11585, 13755, 13902, 18340, 19860, 23170, 27510, 27804, 34755, 43361, 46340, 55020, 69510, 86722, 130083, 139020, 173444, 216805, 260166, 303527, 433610, 520332, 607054, 650415, 867220, 910581, 1214108, 1300830, 1517635, 1821162, 2601660, 3035270, 3642324, 4552905, 6070540, 9105810, 18211620]

約数ペア:

[(1, 18211620), (2, 9105810), (3, 6070540), (4, 4552905), (5, 3642324), (6, 3035270), (7, 2601660), (10, 1821162), (12, 1517635), (14, 1300830), (15, 1214108), (20, 910581), (21, 867220), (28, 650415), (30, 607054), (35, 520332), (42, 433610), (60, 303527), (70, 260166), (84, 216805), (105, 173444), (131, 139020), (140, 130083), (210, 86722), (262, 69510), (331, 55020), (393, 46340), (420, 43361), (524, 34755), (655, 27804), (662, 27510), (786, 23170), (917, 19860), (993, 18340), (1310, 13902), (1324, 13755), (1572, 11585), (1655, 11004), (1834, 9930), (1965, 9268), (1986, 9170), (2317, 7860), (2620, 6951), (2751, 6620), (3310, 5502), (3668, 4965), (3930, 4634), (3972, 4585)]