21521770

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1579}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19431830

約数列:

[1, 2, 5, 10, 29, 47, 58, 94, 145, 235, 290, 470, 1363, 1579, 2726, 3158, 6815, 7895, 13630, 15790, 45791, 74213, 91582, 148426, 228955, 371065, 457910, 742130, 2152177, 4304354, 10760885, 21521770]

約数ペア:

[(1, 21521770), (2, 10760885), (5, 4304354), (10, 2152177), (29, 742130), (47, 457910), (58, 371065), (94, 228955), (145, 148426), (235, 91582), (290, 74213), (470, 45791), (1363, 15790), (1579, 13630), (2726, 7895), (3158, 6815)]