19722261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 10614507

約数列:

[1, 3, 13, 17, 39, 51, 151, 197, 221, 453, 591, 663, 1963, 2561, 2567, 3349, 5889, 7683, 7701, 10047, 29747, 33371, 43537, 89241, 100113, 130611, 386711, 505699, 1160133, 1517097, 6574087, 19722261]

約数ペア:

[(1, 19722261), (3, 6574087), (13, 1517097), (17, 1160133), (39, 505699), (51, 386711), (151, 130611), (197, 100113), (221, 89241), (453, 43537), (591, 33371), (663, 29747), (1963, 10047), (2561, 7701), (2567, 7683), (3349, 5889)]