21398983480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1046917}}^1$

素因数の和:1047008

約数の個数: 64

約数和(自身を含む): 55779791040

約数和(自身を除く): 34380807560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 1046917, 2093834, 4187668, 5234585, 7328419, 8375336, 10469170, 14656838, 20938340, 29313676, 36642095, 41876680, 58627352, 73284190, 76424941, 146568380, 152849882, 293136760, 305699764, 382124705, 534974587, 611399528, 764249410, 1069949174, 1528498820, 2139898348, 2674872935, 3056997640, 4279796696, 5349745870, 10699491740, 21398983480]

約数ペア:

[(1, 21398983480), (2, 10699491740), (4, 5349745870), (5, 4279796696), (7, 3056997640), (8, 2674872935), (10, 2139898348), (14, 1528498820), (20, 1069949174), (28, 764249410), (35, 611399528), (40, 534974587), (56, 382124705), (70, 305699764), (73, 293136760), (140, 152849882), (146, 146568380), (280, 76424941), (292, 73284190), (365, 58627352), (511, 41876680), (584, 36642095), (730, 29313676), (1022, 20938340), (1460, 14656838), (2044, 10469170), (2555, 8375336), (2920, 7328419), (4088, 5234585), (5110, 4187668), (10220, 2093834), (20440, 1046917)]