640925607

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1\times {\mathrm{1597}}^1$

素因数の和:2295

約数の個数: 32

約数和(自身を含む): 1012492800

約数和(自身を除く): 371567193

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 659, 1597, 1977, 4613, 4791, 11179, 13839, 19111, 33537, 46313, 57333, 133777, 138939, 324191, 401331, 972573, 1052423, 3157269, 7366961, 22100883, 30520267, 91560801, 213641869, 640925607]

約数ペア:

[(1, 640925607), (3, 213641869), (7, 91560801), (21, 30520267), (29, 22100883), (87, 7366961), (203, 3157269), (609, 1052423), (659, 972573), (1597, 401331), (1977, 324191), (4613, 138939), (4791, 133777), (11179, 57333), (13839, 46313), (19111, 33537)]