21206520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58907}}^1$

素因数の和:58924

約数の個数: 48

約数和(自身を含む): 68922360

約数和(自身を除く): 47715840

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, 58907, 117814, 176721, 235628, 294535, 353442, 471256, 530163, 589070, 706884, 883605, 1060326, 1178140, 1413768, 1767210, 2120652, 2356280, 2650815, 3534420, 4241304, 5301630, 7068840, 10603260, 21206520]

約数ペア:

[(1, 21206520), (2, 10603260), (3, 7068840), (4, 5301630), (5, 4241304), (6, 3534420), (8, 2650815), (9, 2356280), (10, 2120652), (12, 1767210), (15, 1413768), (18, 1178140), (20, 1060326), (24, 883605), (30, 706884), (36, 589070), (40, 530163), (45, 471256), (60, 353442), (72, 294535), (90, 235628), (120, 176721), (180, 117814), (360, 58907)]