19795984

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7321}}^1$

素因数の和:7355

約数の個数: 30

約数和(自身を含む): 41537706

約数和(自身を除く): 21741722

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7321, 14642, 29284, 58568, 95173, 117136, 190346, 380692, 761384, 1237249, 1522768, 2474498, 4948996, 9897992, 19795984]

約数ペア:

[(1, 19795984), (2, 9897992), (4, 4948996), (8, 2474498), (13, 1522768), (16, 1237249), (26, 761384), (52, 380692), (104, 190346), (169, 117136), (208, 95173), (338, 58568), (676, 29284), (1352, 14642), (2704, 7321)]