21203664

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{11939}}^1$

素因数の和:11987

約数の個数: 40

約数和(自身を含む): 56261280

約数和(自身を除く): 35057616

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 11939, 23878, 35817, 47756, 71634, 95512, 143268, 191024, 286536, 441743, 573072, 883486, 1325229, 1766972, 2650458, 3533944, 5300916, 7067888, 10601832, 21203664]

約数ペア:

[(1, 21203664), (2, 10601832), (3, 7067888), (4, 5300916), (6, 3533944), (8, 2650458), (12, 1766972), (16, 1325229), (24, 883486), (37, 573072), (48, 441743), (74, 286536), (111, 191024), (148, 143268), (222, 95512), (296, 71634), (444, 47756), (592, 35817), (888, 23878), (1776, 11939)]