21428848

素因数分解:

$2^4\times 7^1\times {\mathrm{293}}^1\times {\mathrm{653}}^1$

素因数の和:961

約数の個数: 40

約数和(自身を含む): 47684448

約数和(自身を除く): 26255600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 293, 586, 653, 1172, 1306, 2051, 2344, 2612, 4102, 4571, 4688, 5224, 8204, 9142, 10448, 16408, 18284, 32816, 36568, 73136, 191329, 382658, 765316, 1339303, 1530632, 2678606, 3061264, 5357212, 10714424, 21428848]

約数ペア:

[(1, 21428848), (2, 10714424), (4, 5357212), (7, 3061264), (8, 2678606), (14, 1530632), (16, 1339303), (28, 765316), (56, 382658), (112, 191329), (293, 73136), (586, 36568), (653, 32816), (1172, 18284), (1306, 16408), (2051, 10448), (2344, 9142), (2612, 8204), (4102, 5224), (4571, 4688)]