1221078261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{12197}}^1$

素因数の和:12381

約数の個数: 32

約数和(自身を含む): 1868928768

約数和(自身を除く): 647850507

約数列:

[1, 3, 13, 17, 39, 51, 151, 221, 453, 663, 1963, 2567, 5889, 7701, 12197, 33371, 36591, 100113, 158561, 207349, 475683, 622047, 1841747, 2695537, 5525241, 8086611, 23942711, 31309699, 71828133, 93929097, 407026087, 1221078261]

約数ペア:

[(1, 1221078261), (3, 407026087), (13, 93929097), (17, 71828133), (39, 31309699), (51, 23942711), (151, 8086611), (221, 5525241), (453, 2695537), (663, 1841747), (1963, 622047), (2567, 475683), (5889, 207349), (7701, 158561), (12197, 100113), (33371, 36591)]