217557938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{269923}}^1$

素因数の和:269969

約数の個数: 16

約数和(自身を含む): 362777856

約数和(自身を除く): 145219918

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 269923, 539846, 3508999, 7017998, 8367613, 16735226, 108778969, 217557938]

約数ペア:

[(1, 217557938), (2, 108778969), (13, 16735226), (26, 8367613), (31, 7017998), (62, 3508999), (403, 539846), (806, 269923)]