21398742

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{4261}}^1$

素因数の和:4306

約数の個数: 40

約数和(自身を含む): 49507392

約数和(自身を除く): 28108650

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 279, 558, 837, 1674, 2511, 4261, 5022, 8522, 12783, 25566, 38349, 76698, 115047, 132091, 230094, 264182, 345141, 396273, 690282, 792546, 1188819, 2377638, 3566457, 7132914, 10699371, 21398742]

約数ペア:

[(1, 21398742), (2, 10699371), (3, 7132914), (6, 3566457), (9, 2377638), (18, 1188819), (27, 792546), (31, 690282), (54, 396273), (62, 345141), (81, 264182), (93, 230094), (162, 132091), (186, 115047), (279, 76698), (558, 38349), (837, 25566), (1674, 12783), (2511, 8522), (4261, 5022)]