20174955

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1009}}^1$

素因数の和:1091

約数の個数: 32

約数和(自身を含む): 34129920

約数和(自身を除く): 13954965

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 1009, 1333, 3027, 3999, 5045, 6665, 15135, 19995, 31279, 43387, 93837, 130161, 156395, 216935, 469185, 650805, 1344997, 4034991, 6724985, 20174955]

約数ペア:

[(1, 20174955), (3, 6724985), (5, 4034991), (15, 1344997), (31, 650805), (43, 469185), (93, 216935), (129, 156395), (155, 130161), (215, 93837), (465, 43387), (645, 31279), (1009, 19995), (1333, 15135), (3027, 6665), (3999, 5045)]