21638656

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3251}}^1$

素因数の和:3282

約数の個数: 40

約数和(自身を含む): 46575144

約数和(自身を除く): 24936488

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3251, 3328, 6502, 6656, 13004, 26008, 42263, 52016, 84526, 104032, 169052, 208064, 338104, 416128, 676208, 832256, 1352416, 1664512, 2704832, 5409664, 10819328, 21638656]

約数ペア:

[(1, 21638656), (2, 10819328), (4, 5409664), (8, 2704832), (13, 1664512), (16, 1352416), (26, 832256), (32, 676208), (52, 416128), (64, 338104), (104, 208064), (128, 169052), (208, 104032), (256, 84526), (416, 52016), (512, 42263), (832, 26008), (1664, 13004), (3251, 6656), (3328, 6502)]