21284257155

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1259051}}^1$

素因数の和:1259096

約数の個数: 48

約数和(自身を含む): 41337195264

約数和(自身を除く): 20052938109

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1127, 2415, 3381, 5635, 16905, 1259051, 3777153, 6295255, 8813357, 18885765, 26440071, 28958173, 44066785, 61693499, 86874519, 132200355, 144790865, 185080497, 202707211, 308467495, 434372595, 608121633, 925402485, 1013536055, 1418950477, 3040608165, 4256851431, 7094752385, 21284257155]

約数ペア:

[(1, 21284257155), (3, 7094752385), (5, 4256851431), (7, 3040608165), (15, 1418950477), (21, 1013536055), (23, 925402485), (35, 608121633), (49, 434372595), (69, 308467495), (105, 202707211), (115, 185080497), (147, 144790865), (161, 132200355), (245, 86874519), (345, 61693499), (483, 44066785), (735, 28958173), (805, 26440071), (1127, 18885765), (2415, 8813357), (3381, 6295255), (5635, 3777153), (16905, 1259051)]