20855208

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 57309120

約数和(自身を除く): 36453912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 197, 264, 394, 401, 591, 788, 802, 1182, 1203, 1576, 1604, 2167, 2364, 2406, 3208, 4334, 4411, 4728, 4812, 6501, 8668, 8822, 9624, 13002, 13233, 17336, 17644, 26004, 26466, 35288, 52008, 52932, 78997, 105864, 157994, 236991, 315988, 473982, 631976, 868967, 947964, 1737934, 1895928, 2606901, 3475868, 5213802, 6951736, 10427604, 20855208]

約数ペア:

[(1, 20855208), (2, 10427604), (3, 6951736), (4, 5213802), (6, 3475868), (8, 2606901), (11, 1895928), (12, 1737934), (22, 947964), (24, 868967), (33, 631976), (44, 473982), (66, 315988), (88, 236991), (132, 157994), (197, 105864), (264, 78997), (394, 52932), (401, 52008), (591, 35288), (788, 26466), (802, 26004), (1182, 17644), (1203, 17336), (1576, 13233), (1604, 13002), (2167, 9624), (2364, 8822), (2406, 8668), (3208, 6501), (4334, 4812), (4411, 4728)]