21051970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 39495600

約数和(自身を除く): 18443630

約数列:

[1, 2, 5, 10, 29, 58, 145, 229, 290, 317, 458, 634, 1145, 1585, 2290, 3170, 6641, 9193, 13282, 18386, 33205, 45965, 66410, 72593, 91930, 145186, 362965, 725930, 2105197, 4210394, 10525985, 21051970]

約数ペア:

[(1, 21051970), (2, 10525985), (5, 4210394), (10, 2105197), (29, 725930), (58, 362965), (145, 145186), (229, 91930), (290, 72593), (317, 66410), (458, 45965), (634, 33205), (1145, 18386), (1585, 13282), (2290, 9193), (3170, 6641)]