21532550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 43611792

約数和(自身を除く): 22079242

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 157, 211, 314, 325, 422, 650, 785, 1055, 1570, 2041, 2110, 2743, 3925, 4082, 5275, 5486, 7850, 10205, 10550, 13715, 20410, 27430, 33127, 51025, 66254, 68575, 102050, 137150, 165635, 331270, 430651, 828175, 861302, 1656350, 2153255, 4306510, 10766275, 21532550]

約数ペア:

[(1, 21532550), (2, 10766275), (5, 4306510), (10, 2153255), (13, 1656350), (25, 861302), (26, 828175), (50, 430651), (65, 331270), (130, 165635), (157, 137150), (211, 102050), (314, 68575), (325, 66254), (422, 51025), (650, 33127), (785, 27430), (1055, 20410), (1570, 13715), (2041, 10550), (2110, 10205), (2743, 7850), (3925, 5486), (4082, 5275)]