21457056

素因数分解:

$2^5\times 3^1\times {\mathrm{397}}^1\times {\mathrm{563}}^1$

素因数の和:973

約数の個数: 48

約数和(自身を含む): 56566944

約数和(自身を除く): 35109888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 397, 563, 794, 1126, 1191, 1588, 1689, 2252, 2382, 3176, 3378, 4504, 4764, 6352, 6756, 9008, 9528, 12704, 13512, 18016, 19056, 27024, 38112, 54048, 223511, 447022, 670533, 894044, 1341066, 1788088, 2682132, 3576176, 5364264, 7152352, 10728528, 21457056]

約数ペア:

[(1, 21457056), (2, 10728528), (3, 7152352), (4, 5364264), (6, 3576176), (8, 2682132), (12, 1788088), (16, 1341066), (24, 894044), (32, 670533), (48, 447022), (96, 223511), (397, 54048), (563, 38112), (794, 27024), (1126, 19056), (1191, 18016), (1588, 13512), (1689, 12704), (2252, 9528), (2382, 9008), (3176, 6756), (3378, 6352), (4504, 4764)]