21518820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119549}}^1$

素因数の和:119564

約数の個数: 36

約数和(自身を含む): 65274300

約数和(自身を除く): 43755480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119549, 239098, 358647, 478196, 597745, 717294, 1075941, 1195490, 1434588, 1793235, 2151882, 2390980, 3586470, 4303764, 5379705, 7172940, 10759410, 21518820]

約数ペア:

[(1, 21518820), (2, 10759410), (3, 7172940), (4, 5379705), (5, 4303764), (6, 3586470), (9, 2390980), (10, 2151882), (12, 1793235), (15, 1434588), (18, 1195490), (20, 1075941), (30, 717294), (36, 597745), (45, 478196), (60, 358647), (90, 239098), (180, 119549)]