20808220215

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2517631}}^1$

素因数の和:2517687

約数の個数: 32

約数和(自身を含む): 36253900800

約数和(自身を除く): 15445680585

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2755, 8265, 2517631, 7552893, 12588155, 37764465, 47834989, 73011299, 143504967, 219033897, 239174945, 365056495, 717524835, 1095169485, 1387214681, 4161644043, 6936073405, 20808220215]

約数ペア:

[(1, 20808220215), (3, 6936073405), (5, 4161644043), (15, 1387214681), (19, 1095169485), (29, 717524835), (57, 365056495), (87, 239174945), (95, 219033897), (145, 143504967), (285, 73011299), (435, 47834989), (551, 37764465), (1653, 12588155), (2755, 7552893), (8265, 2517631)]