20672936

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 40118880

約数和(自身を除く): 19445944

約数列:

[1, 2, 4, 8, 37, 74, 148, 211, 296, 331, 422, 662, 844, 1324, 1688, 2648, 7807, 12247, 15614, 24494, 31228, 48988, 62456, 69841, 97976, 139682, 279364, 558728, 2584117, 5168234, 10336468, 20672936]

約数ペア:

[(1, 20672936), (2, 10336468), (4, 5168234), (8, 2584117), (37, 558728), (74, 279364), (148, 139682), (211, 97976), (296, 69841), (331, 62456), (422, 48988), (662, 31228), (844, 24494), (1324, 15614), (1688, 12247), (2648, 7807)]