21512340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119513}}^1$

素因数の和:119528

約数の個数: 36

約数和(自身を含む): 65254644

約数和(自身を除く): 43742304

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119513, 239026, 358539, 478052, 597565, 717078, 1075617, 1195130, 1434156, 1792695, 2151234, 2390260, 3585390, 4302468, 5378085, 7170780, 10756170, 21512340]

約数ペア:

[(1, 21512340), (2, 10756170), (3, 7170780), (4, 5378085), (5, 4302468), (6, 3585390), (9, 2390260), (10, 2151234), (12, 1792695), (15, 1434156), (18, 1195130), (20, 1075617), (30, 717078), (36, 597565), (45, 478052), (60, 358539), (90, 239026), (180, 119513)]