20366745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4127}}^1$

素因数の和:4189

約数の個数: 32

約数和(自身を含む): 38043648

約数和(自身を除く): 17676903

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4127, 4935, 12381, 20635, 28889, 61905, 86667, 144445, 193969, 433335, 581907, 969845, 1357783, 2909535, 4073349, 6788915, 20366745]

約数ペア:

[(1, 20366745), (3, 6788915), (5, 4073349), (7, 2909535), (15, 1357783), (21, 969845), (35, 581907), (47, 433335), (105, 193969), (141, 144445), (235, 86667), (329, 61905), (705, 28889), (987, 20635), (1645, 12381), (4127, 4935)]