21503340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39821}}^1$

素因数の和:39839

約数の個数: 48

約数和(自身を含む): 66900960

約数和(自身を除く): 45397620

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, 39821, 79642, 119463, 159284, 199105, 238926, 358389, 398210, 477852, 597315, 716778, 796420, 1075167, 1194630, 1433556, 1791945, 2150334, 2389260, 3583890, 4300668, 5375835, 7167780, 10751670, 21503340]

約数ペア:

[(1, 21503340), (2, 10751670), (3, 7167780), (4, 5375835), (5, 4300668), (6, 3583890), (9, 2389260), (10, 2150334), (12, 1791945), (15, 1433556), (18, 1194630), (20, 1075167), (27, 796420), (30, 716778), (36, 597315), (45, 477852), (54, 398210), (60, 358389), (90, 238926), (108, 199105), (135, 159284), (180, 119463), (270, 79642), (540, 39821)]