21115278

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:597

約数の個数: 48

約数和(自身を含む): 47923200

約数和(自身を除く): 26807922

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 79, 93, 158, 186, 237, 279, 474, 479, 558, 711, 958, 1422, 1437, 2449, 2874, 4311, 4898, 7347, 8622, 14694, 14849, 22041, 29698, 37841, 44082, 44547, 75682, 89094, 113523, 133641, 227046, 267282, 340569, 681138, 1173071, 2346142, 3519213, 7038426, 10557639, 21115278]

約数ペア:

[(1, 21115278), (2, 10557639), (3, 7038426), (6, 3519213), (9, 2346142), (18, 1173071), (31, 681138), (62, 340569), (79, 267282), (93, 227046), (158, 133641), (186, 113523), (237, 89094), (279, 75682), (474, 44547), (479, 44082), (558, 37841), (711, 29698), (958, 22041), (1422, 14849), (1437, 14694), (2449, 8622), (2874, 7347), (4311, 4898)]