21758120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18757}}^1$

素因数の和:18797

約数の個数: 32

約数和(自身を含む): 50646600

約数和(自身を除く): 28888480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18757, 37514, 75028, 93785, 150056, 187570, 375140, 543953, 750280, 1087906, 2175812, 2719765, 4351624, 5439530, 10879060, 21758120]

約数ペア:

[(1, 21758120), (2, 10879060), (4, 5439530), (5, 4351624), (8, 2719765), (10, 2175812), (20, 1087906), (29, 750280), (40, 543953), (58, 375140), (116, 187570), (145, 150056), (232, 93785), (290, 75028), (580, 37514), (1160, 18757)]