21237647516

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1225909}}^1$

素因数の和:1226045

約数の個数: 24

約数和(自身を含む): 38307235680

約数和(自身を除く): 17069588164

約数列:

[1, 2, 4, 61, 71, 122, 142, 244, 284, 4331, 8662, 17324, 1225909, 2451818, 4903636, 74780449, 87039539, 149560898, 174079078, 299121796, 348158156, 5309411879, 10618823758, 21237647516]

約数ペア:

[(1, 21237647516), (2, 10618823758), (4, 5309411879), (61, 348158156), (71, 299121796), (122, 174079078), (142, 149560898), (244, 87039539), (284, 74780449), (4331, 4903636), (8662, 2451818), (17324, 1225909)]