21790352

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 22269328

約数列:

[1, 2, 4, 8, 16, 41, 59, 82, 118, 164, 236, 328, 472, 563, 656, 944, 1126, 2252, 2419, 4504, 4838, 9008, 9676, 19352, 23083, 33217, 38704, 46166, 66434, 92332, 132868, 184664, 265736, 369328, 531472, 1361897, 2723794, 5447588, 10895176, 21790352]

約数ペア:

[(1, 21790352), (2, 10895176), (4, 5447588), (8, 2723794), (16, 1361897), (41, 531472), (59, 369328), (82, 265736), (118, 184664), (164, 132868), (236, 92332), (328, 66434), (472, 46166), (563, 38704), (656, 33217), (944, 23083), (1126, 19352), (2252, 9676), (2419, 9008), (4504, 4838)]