20723864

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1823}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 46785600

約数和(自身を除く): 26061736

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 49, 56, 58, 98, 116, 196, 203, 232, 392, 406, 812, 1421, 1624, 1823, 2842, 3646, 5684, 7292, 11368, 12761, 14584, 25522, 51044, 52867, 89327, 102088, 105734, 178654, 211468, 357308, 370069, 422936, 714616, 740138, 1480276, 2590483, 2960552, 5180966, 10361932, 20723864]

約数ペア:

[(1, 20723864), (2, 10361932), (4, 5180966), (7, 2960552), (8, 2590483), (14, 1480276), (28, 740138), (29, 714616), (49, 422936), (56, 370069), (58, 357308), (98, 211468), (116, 178654), (196, 105734), (203, 102088), (232, 89327), (392, 52867), (406, 51044), (812, 25522), (1421, 14584), (1624, 12761), (1823, 11368), (2842, 7292), (3646, 5684)]