21385006545

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{299951}}^1$

素因数の和:300070

約数の個数: 48

約数和(自身を含む): 40212764928

約数和(自身を除く): 18827758383

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 97, 105, 147, 245, 291, 485, 679, 735, 1455, 2037, 3395, 4753, 10185, 14259, 23765, 71295, 299951, 899853, 1499755, 2099657, 4499265, 6298971, 10498285, 14697599, 29095247, 31494855, 44092797, 73487995, 87285741, 145476235, 203666729, 220463985, 436428705, 611000187, 1018333645, 1425667103, 3055000935, 4277001309, 7128335515, 21385006545]

約数ペア:

[(1, 21385006545), (3, 7128335515), (5, 4277001309), (7, 3055000935), (15, 1425667103), (21, 1018333645), (35, 611000187), (49, 436428705), (97, 220463985), (105, 203666729), (147, 145476235), (245, 87285741), (291, 73487995), (485, 44092797), (679, 31494855), (735, 29095247), (1455, 14697599), (2037, 10498285), (3395, 6298971), (4753, 4499265), (10185, 2099657), (14259, 1499755), (23765, 899853), (71295, 299951)]