21907260

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13523}}^1$

素因数の和:13544

約数の個数: 60

約数和(自身を含む): 68728968

約数和(自身を除く): 46821708

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, 13523, 27046, 40569, 54092, 67615, 81138, 121707, 135230, 162276, 202845, 243414, 270460, 365121, 405690, 486828, 608535, 730242, 811380, 1095363, 1217070, 1460484, 1825605, 2190726, 2434140, 3651210, 4381452, 5476815, 7302420, 10953630, 21907260]

約数ペア:

[(1, 21907260), (2, 10953630), (3, 7302420), (4, 5476815), (5, 4381452), (6, 3651210), (9, 2434140), (10, 2190726), (12, 1825605), (15, 1460484), (18, 1217070), (20, 1095363), (27, 811380), (30, 730242), (36, 608535), (45, 486828), (54, 405690), (60, 365121), (81, 270460), (90, 243414), (108, 202845), (135, 162276), (162, 135230), (180, 121707), (270, 81138), (324, 67615), (405, 54092), (540, 40569), (810, 27046), (1620, 13523)]