19706128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5573}}^1$

素因数の和:5611

約数の個数: 40

約数和(自身を含む): 43544088

約数和(自身を除く): 23837960

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5573, 11146, 22292, 44584, 72449, 89168, 94741, 144898, 189482, 289796, 378964, 579592, 757928, 1159184, 1231633, 1515856, 2463266, 4926532, 9853064, 19706128]

約数ペア:

[(1, 19706128), (2, 9853064), (4, 4926532), (8, 2463266), (13, 1515856), (16, 1231633), (17, 1159184), (26, 757928), (34, 579592), (52, 378964), (68, 289796), (104, 189482), (136, 144898), (208, 94741), (221, 89168), (272, 72449), (442, 44584), (884, 22292), (1768, 11146), (3536, 5573)]