20086857

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 35468160

約数和(自身を除く): 15381303

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 97, 133, 171, 173, 291, 399, 519, 679, 873, 1197, 1211, 1557, 1843, 2037, 3287, 3633, 5529, 6111, 9861, 10899, 12901, 16587, 16781, 23009, 29583, 38703, 50343, 69027, 116109, 117467, 151029, 207081, 318839, 352401, 956517, 1057203, 2231873, 2869551, 6695619, 20086857]

約数ペア:

[(1, 20086857), (3, 6695619), (7, 2869551), (9, 2231873), (19, 1057203), (21, 956517), (57, 352401), (63, 318839), (97, 207081), (133, 151029), (171, 117467), (173, 116109), (291, 69027), (399, 50343), (519, 38703), (679, 29583), (873, 23009), (1197, 16781), (1211, 16587), (1557, 12901), (1843, 10899), (2037, 9861), (3287, 6111), (3633, 5529)]