21493938

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 44136576

約数和(自身を除く): 22642638

約数列:

[1, 2, 3, 6, 53, 106, 159, 257, 263, 318, 514, 526, 771, 789, 1542, 1578, 13621, 13939, 27242, 27878, 40863, 41817, 67591, 81726, 83634, 135182, 202773, 405546, 3582323, 7164646, 10746969, 21493938]

約数ペア:

[(1, 21493938), (2, 10746969), (3, 7164646), (6, 3582323), (53, 405546), (106, 202773), (159, 135182), (257, 83634), (263, 81726), (318, 67591), (514, 41817), (526, 40863), (771, 27878), (789, 27242), (1542, 13939), (1578, 13621)]