639721043134

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{51437}}^1\times {\mathrm{327289}}^1$

素因数の和:378747

約数の個数: 16

約数和(自身を含む): 1010108581200

約数和(自身を除く): 370387538066

約数列:

[1, 2, 19, 38, 51437, 102874, 327289, 654578, 977303, 1954606, 6218491, 12436982, 16834764293, 33669528586, 319860521567, 639721043134]

約数ペア:

[(1, 639721043134), (2, 319860521567), (19, 33669528586), (38, 16834764293), (51437, 12436982), (102874, 6218491), (327289, 1954606), (654578, 977303)]