219215984

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{81071}}^1$

素因数の和:81105

約数の個数: 30

約数和(自身を含む): 459921456

約数和(自身を除く): 240705472

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 81071, 162142, 324284, 648568, 1053923, 1297136, 2107846, 4215692, 8431384, 13700999, 16862768, 27401998, 54803996, 109607992, 219215984]

約数ペア:

[(1, 219215984), (2, 109607992), (4, 54803996), (8, 27401998), (13, 16862768), (16, 13700999), (26, 8431384), (52, 4215692), (104, 2107846), (169, 1297136), (208, 1053923), (338, 648568), (676, 324284), (1352, 162142), (2704, 81071)]