21686830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17923}}^1$

素因数の和:17952

約数の個数: 24

約数和(自身を含む): 42910056

約数和(自身を除く): 21223226

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17923, 35846, 89615, 179230, 197153, 394306, 985765, 1971530, 2168683, 4337366, 10843415, 21686830]

約数ペア:

[(1, 21686830), (2, 10843415), (5, 4337366), (10, 2168683), (11, 1971530), (22, 985765), (55, 394306), (110, 197153), (121, 179230), (242, 89615), (605, 35846), (1210, 17923)]