21412530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^2$

素因数の和:200

約数の個数: 72

約数和(自身を含む): 57582252

約数和(自身を除く): 36169722

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 67, 90, 106, 134, 159, 201, 265, 318, 335, 402, 477, 530, 603, 670, 795, 954, 1005, 1206, 1590, 2010, 2385, 3015, 3551, 4489, 4770, 6030, 7102, 8978, 10653, 13467, 17755, 21306, 22445, 26934, 31959, 35510, 40401, 44890, 53265, 63918, 67335, 80802, 106530, 134670, 159795, 202005, 237917, 319590, 404010, 475834, 713751, 1189585, 1427502, 2141253, 2379170, 3568755, 4282506, 7137510, 10706265, 21412530]

約数ペア:

[(1, 21412530), (2, 10706265), (3, 7137510), (5, 4282506), (6, 3568755), (9, 2379170), (10, 2141253), (15, 1427502), (18, 1189585), (30, 713751), (45, 475834), (53, 404010), (67, 319590), (90, 237917), (106, 202005), (134, 159795), (159, 134670), (201, 106530), (265, 80802), (318, 67335), (335, 63918), (402, 53265), (477, 44890), (530, 40401), (603, 35510), (670, 31959), (795, 26934), (954, 22445), (1005, 21306), (1206, 17755), (1590, 13467), (2010, 10653), (2385, 8978), (3015, 7102), (3551, 6030), (4489, 4770)]