21332360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1621}}^1$

素因数の和:1686

約数の個数: 64

約数和(自身を含む): 56056320

約数和(自身を除く): 34723960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1621, 1645, 1880, 2632, 3242, 3290, 6484, 6580, 8105, 11347, 12968, 13160, 16210, 22694, 32420, 45388, 56735, 64840, 76187, 90776, 113470, 152374, 226940, 304748, 380935, 453880, 533309, 609496, 761870, 1066618, 1523740, 2133236, 2666545, 3047480, 4266472, 5333090, 10666180, 21332360]

約数ペア:

[(1, 21332360), (2, 10666180), (4, 5333090), (5, 4266472), (7, 3047480), (8, 2666545), (10, 2133236), (14, 1523740), (20, 1066618), (28, 761870), (35, 609496), (40, 533309), (47, 453880), (56, 380935), (70, 304748), (94, 226940), (140, 152374), (188, 113470), (235, 90776), (280, 76187), (329, 64840), (376, 56735), (470, 45388), (658, 32420), (940, 22694), (1316, 16210), (1621, 13160), (1645, 12968), (1880, 11347), (2632, 8105), (3242, 6580), (3290, 6484)]