21891060

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13513}}^1$

素因数の和:13534

約数の個数: 60

約数和(自身を含む): 68678148

約数和(自身を除く): 46787088

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13513, 27026, 40539, 54052, 67565, 81078, 121617, 135130, 162156, 202695, 243234, 270260, 364851, 405390, 486468, 608085, 729702, 810780, 1094553, 1216170, 1459404, 1824255, 2189106, 2432340, 3648510, 4378212, 5472765, 7297020, 10945530, 21891060]

約数ペア:

[(1, 21891060), (2, 10945530), (3, 7297020), (4, 5472765), (5, 4378212), (6, 3648510), (9, 2432340), (10, 2189106), (12, 1824255), (15, 1459404), (18, 1216170), (20, 1094553), (27, 810780), (30, 729702), (36, 608085), (45, 486468), (54, 405390), (60, 364851), (81, 270260), (90, 243234), (108, 202695), (135, 162156), (162, 135130), (180, 121617), (270, 81078), (324, 67565), (405, 54052), (540, 40539), (810, 27026), (1620, 13513)]