21370430

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1204

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 18909250

約数列:

[1, 2, 5, 10, 41, 47, 82, 94, 205, 235, 410, 470, 1109, 1927, 2218, 3854, 5545, 9635, 11090, 19270, 45469, 52123, 90938, 104246, 227345, 260615, 454690, 521230, 2137043, 4274086, 10685215, 21370430]

約数ペア:

[(1, 21370430), (2, 10685215), (5, 4274086), (10, 2137043), (41, 521230), (47, 454690), (82, 260615), (94, 227345), (205, 104246), (235, 90938), (410, 52123), (470, 45469), (1109, 19270), (1927, 11090), (2218, 9635), (3854, 5545)]