21990147224

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1\times {\mathrm{2689}}^1$

素因数の和:3252

約数の個数: 64

約数和(自身を含む): 44066073600

約数和(自身を除く): 22075926376

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157, 314, 383, 628, 766, 1256, 1532, 2669, 2689, 3064, 5338, 5378, 6511, 10676, 10756, 13022, 21352, 21512, 26044, 45713, 52088, 60131, 91426, 120262, 182852, 240524, 365704, 422173, 481048, 844346, 1022227, 1029887, 1688692, 2044454, 2059774, 3377384, 4088908, 4119548, 7176941, 8177816, 8239096, 14353882, 17508079, 28707764, 35016158, 57415528, 70032316, 140064632, 161692259, 323384518, 646769036, 1293538072, 2748768403, 5497536806, 10995073612, 21990147224]

約数ペア:

[(1, 21990147224), (2, 10995073612), (4, 5497536806), (8, 2748768403), (17, 1293538072), (34, 646769036), (68, 323384518), (136, 161692259), (157, 140064632), (314, 70032316), (383, 57415528), (628, 35016158), (766, 28707764), (1256, 17508079), (1532, 14353882), (2669, 8239096), (2689, 8177816), (3064, 7176941), (5338, 4119548), (5378, 4088908), (6511, 3377384), (10676, 2059774), (10756, 2044454), (13022, 1688692), (21352, 1029887), (21512, 1022227), (26044, 844346), (45713, 481048), (52088, 422173), (60131, 365704), (91426, 240524), (120262, 182852)]