21386520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59407}}^1$

素因数の和:59424

約数の個数: 48

約数和(自身を含む): 69507360

約数和(自身を除く): 48120840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59407, 118814, 178221, 237628, 297035, 356442, 475256, 534663, 594070, 712884, 891105, 1069326, 1188140, 1425768, 1782210, 2138652, 2376280, 2673315, 3564420, 4277304, 5346630, 7128840, 10693260, 21386520]

約数ペア:

[(1, 21386520), (2, 10693260), (3, 7128840), (4, 5346630), (5, 4277304), (6, 3564420), (8, 2673315), (9, 2376280), (10, 2138652), (12, 1782210), (15, 1425768), (18, 1188140), (20, 1069326), (24, 891105), (30, 712884), (36, 594070), (40, 534663), (45, 475256), (60, 356442), (72, 297035), (90, 237628), (120, 178221), (180, 118814), (360, 59407)]