639169983

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{431}}^1\times {\mathrm{3109}}^1$

素因数の和:3599

約数の個数: 24

約数和(自身を含む): 943151040

約数和(自身を除く): 303981057

約数列:

[1, 3, 9, 53, 159, 431, 477, 1293, 3109, 3879, 9327, 22843, 27981, 68529, 164777, 205587, 494331, 1339979, 1482993, 4019937, 12059811, 71018887, 213056661, 639169983]

約数ペア:

[(1, 639169983), (3, 213056661), (9, 71018887), (53, 12059811), (159, 4019937), (431, 1482993), (477, 1339979), (1293, 494331), (3109, 205587), (3879, 164777), (9327, 68529), (22843, 27981)]