18643456

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2801}}^1$

素因数の和:2832

約数の個数: 40

約数和(自身を含む): 40130244

約数和(自身を除く): 21486788

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 2801, 3328, 5602, 6656, 11204, 22408, 36413, 44816, 72826, 89632, 145652, 179264, 291304, 358528, 582608, 717056, 1165216, 1434112, 2330432, 4660864, 9321728, 18643456]

約数ペア:

[(1, 18643456), (2, 9321728), (4, 4660864), (8, 2330432), (13, 1434112), (16, 1165216), (26, 717056), (32, 582608), (52, 358528), (64, 291304), (104, 179264), (128, 145652), (208, 89632), (256, 72826), (416, 44816), (512, 36413), (832, 22408), (1664, 11204), (2801, 6656), (3328, 5602)]