21271168

素因数分解:

$2^7\times {\mathrm{137}}^1\times {\mathrm{1213}}^1$

素因数の和:1364

約数の個数: 32

約数和(自身を含む): 42720660

約数和(自身を除く): 21449492

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 274, 548, 1096, 1213, 2192, 2426, 4384, 4852, 8768, 9704, 17536, 19408, 38816, 77632, 155264, 166181, 332362, 664724, 1329448, 2658896, 5317792, 10635584, 21271168]

約数ペア:

[(1, 21271168), (2, 10635584), (4, 5317792), (8, 2658896), (16, 1329448), (32, 664724), (64, 332362), (128, 166181), (137, 155264), (274, 77632), (548, 38816), (1096, 19408), (1213, 17536), (2192, 9704), (2426, 8768), (4384, 4852)]