20123486551

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{8693}}^1$

素因数の和:9128

約数の個数: 32

約数和(自身を含む): 24913526400

約数和(自身を除く): 4790039849

約数列:

[1, 7, 17, 49, 119, 343, 397, 833, 2779, 5831, 6749, 8693, 19453, 47243, 60851, 136171, 147781, 330701, 425957, 1034467, 2314907, 2981699, 3451121, 7241269, 24157847, 50688883, 58669057, 169104929, 410683399, 1183734503, 2874783793, 20123486551]

約数ペア:

[(1, 20123486551), (7, 2874783793), (17, 1183734503), (49, 410683399), (119, 169104929), (343, 58669057), (397, 50688883), (833, 24157847), (2779, 7241269), (5831, 3451121), (6749, 2981699), (8693, 2314907), (19453, 1034467), (47243, 425957), (60851, 330701), (136171, 147781)]