21423070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2399}}^1$

素因数の和:2472

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 20048930

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 2399, 4465, 4798, 8930, 11995, 23990, 45581, 91162, 112753, 225506, 227905, 455810, 563765, 1127530, 2142307, 4284614, 10711535, 21423070]

約数ペア:

[(1, 21423070), (2, 10711535), (5, 4284614), (10, 2142307), (19, 1127530), (38, 563765), (47, 455810), (94, 227905), (95, 225506), (190, 112753), (235, 91162), (470, 45581), (893, 23990), (1786, 11995), (2399, 8930), (4465, 4798)]