20710095

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1483}}^1$

素因数の和:1524

約数の個数: 48

約数和(自身を含む): 40602240

約数和(自身を除く): 19892145

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1483, 1995, 2793, 4449, 4655, 7415, 10381, 13965, 22245, 28177, 31143, 51905, 72667, 84531, 140885, 155715, 197239, 218001, 363335, 422655, 591717, 986195, 1090005, 1380673, 2958585, 4142019, 6903365, 20710095]

約数ペア:

[(1, 20710095), (3, 6903365), (5, 4142019), (7, 2958585), (15, 1380673), (19, 1090005), (21, 986195), (35, 591717), (49, 422655), (57, 363335), (95, 218001), (105, 197239), (133, 155715), (147, 140885), (245, 84531), (285, 72667), (399, 51905), (665, 31143), (735, 28177), (931, 22245), (1483, 13965), (1995, 10381), (2793, 7415), (4449, 4655)]