21275268

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2459}}^1$

素因数の和:2576

約数の個数: 48

約数和(自身を含む): 57308160

約数和(自身を除く): 36032892

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2459, 2884, 4326, 4918, 7377, 8652, 9836, 14754, 17213, 29508, 34426, 51639, 68852, 103278, 206556, 253277, 506554, 759831, 1013108, 1519662, 1772939, 3039324, 3545878, 5318817, 7091756, 10637634, 21275268]

約数ペア:

[(1, 21275268), (2, 10637634), (3, 7091756), (4, 5318817), (6, 3545878), (7, 3039324), (12, 1772939), (14, 1519662), (21, 1013108), (28, 759831), (42, 506554), (84, 253277), (103, 206556), (206, 103278), (309, 68852), (412, 51639), (618, 34426), (721, 29508), (1236, 17213), (1442, 14754), (2163, 9836), (2459, 8652), (2884, 7377), (4326, 4918)]