20258658

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 72

約数和(自身を含む): 51787008

約数和(自身を除く): 31528350

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 103, 126, 147, 206, 223, 294, 309, 441, 446, 618, 669, 721, 882, 927, 1338, 1442, 1561, 1854, 2007, 2163, 3122, 4014, 4326, 4683, 5047, 6489, 9366, 10094, 10927, 12978, 14049, 15141, 21854, 22969, 28098, 30282, 32781, 45423, 45938, 65562, 68907, 90846, 98343, 137814, 160783, 196686, 206721, 321566, 413442, 482349, 964698, 1125481, 1447047, 2250962, 2894094, 3376443, 6752886, 10129329, 20258658]

約数ペア:

[(1, 20258658), (2, 10129329), (3, 6752886), (6, 3376443), (7, 2894094), (9, 2250962), (14, 1447047), (18, 1125481), (21, 964698), (42, 482349), (49, 413442), (63, 321566), (98, 206721), (103, 196686), (126, 160783), (147, 137814), (206, 98343), (223, 90846), (294, 68907), (309, 65562), (441, 45938), (446, 45423), (618, 32781), (669, 30282), (721, 28098), (882, 22969), (927, 21854), (1338, 15141), (1442, 14049), (1561, 12978), (1854, 10927), (2007, 10094), (2163, 9366), (3122, 6489), (4014, 5047), (4326, 4683)]