61851517

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 81285120

約数和(自身を除く): 19433603

約数列:

[1, 7, 13, 19, 83, 91, 133, 247, 431, 581, 1079, 1577, 1729, 3017, 5603, 7553, 8189, 11039, 20501, 35773, 39221, 57323, 106457, 143507, 250411, 465049, 679687, 745199, 3255343, 4757809, 8835931, 61851517]

約数ペア:

[(1, 61851517), (7, 8835931), (13, 4757809), (19, 3255343), (83, 745199), (91, 679687), (133, 465049), (247, 250411), (431, 143507), (581, 106457), (1079, 57323), (1577, 39221), (1729, 35773), (3017, 20501), (5603, 11039), (7553, 8189)]