21762130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 43217280

約数和(自身を除く): 21455150

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 163, 169, 326, 338, 395, 790, 815, 845, 1027, 1630, 1690, 2054, 2119, 4238, 5135, 10270, 10595, 12877, 13351, 21190, 25754, 26702, 27547, 55094, 64385, 66755, 128770, 133510, 137735, 167401, 275470, 334802, 837005, 1674010, 2176213, 4352426, 10881065, 21762130]

約数ペア:

[(1, 21762130), (2, 10881065), (5, 4352426), (10, 2176213), (13, 1674010), (26, 837005), (65, 334802), (79, 275470), (130, 167401), (158, 137735), (163, 133510), (169, 128770), (326, 66755), (338, 64385), (395, 55094), (790, 27547), (815, 26702), (845, 25754), (1027, 21190), (1630, 13351), (1690, 12877), (2054, 10595), (2119, 10270), (4238, 5135)]