21067578

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4519}}^1$

素因数の和:4571

約数の個数: 48

約数和(自身を含む): 53589120

約数和(自身を除く): 32521542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4519, 4662, 9038, 13557, 27114, 31633, 40671, 63266, 81342, 94899, 167203, 189798, 284697, 334406, 501609, 569394, 1003218, 1170421, 1504827, 2340842, 3009654, 3511263, 7022526, 10533789, 21067578]

約数ペア:

[(1, 21067578), (2, 10533789), (3, 7022526), (6, 3511263), (7, 3009654), (9, 2340842), (14, 1504827), (18, 1170421), (21, 1003218), (37, 569394), (42, 501609), (63, 334406), (74, 284697), (111, 189798), (126, 167203), (222, 94899), (259, 81342), (333, 63266), (518, 40671), (666, 31633), (777, 27114), (1554, 13557), (2331, 9038), (4519, 4662)]