19745990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16319}}^1$

素因数の和:16348

約数の個数: 24

約数和(自身を含む): 39070080

約数和(自身を除く): 19324090

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16319, 32638, 81595, 163190, 179509, 359018, 897545, 1795090, 1974599, 3949198, 9872995, 19745990]

約数ペア:

[(1, 19745990), (2, 9872995), (5, 3949198), (10, 1974599), (11, 1795090), (22, 897545), (55, 359018), (110, 179509), (121, 163190), (242, 81595), (605, 32638), (1210, 16319)]