18571990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1021}}^1$

素因数の和:1152

約数の個数: 32

約数和(自身を含む): 35761824

約数和(自身を除く): 17189834

約数列:

[1, 2, 5, 10, 17, 34, 85, 107, 170, 214, 535, 1021, 1070, 1819, 2042, 3638, 5105, 9095, 10210, 17357, 18190, 34714, 86785, 109247, 173570, 218494, 546235, 1092470, 1857199, 3714398, 9285995, 18571990]

約数ペア:

[(1, 18571990), (2, 9285995), (5, 3714398), (10, 1857199), (17, 1092470), (34, 546235), (85, 218494), (107, 173570), (170, 109247), (214, 86785), (535, 34714), (1021, 18190), (1070, 17357), (1819, 10210), (2042, 9095), (3638, 5105)]