21018420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38923}}^1$

素因数の和:38941

約数の個数: 48

約数和(自身を含む): 65392320

約数和(自身を除く): 44373900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38923, 77846, 116769, 155692, 194615, 233538, 350307, 389230, 467076, 583845, 700614, 778460, 1050921, 1167690, 1401228, 1751535, 2101842, 2335380, 3503070, 4203684, 5254605, 7006140, 10509210, 21018420]

約数ペア:

[(1, 21018420), (2, 10509210), (3, 7006140), (4, 5254605), (5, 4203684), (6, 3503070), (9, 2335380), (10, 2101842), (12, 1751535), (15, 1401228), (18, 1167690), (20, 1050921), (27, 778460), (30, 700614), (36, 583845), (45, 467076), (54, 389230), (60, 350307), (90, 233538), (108, 194615), (135, 155692), (180, 116769), (270, 77846), (540, 38923)]