20997618

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1481}}^1$

素因数の和:1642

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 23818062

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 139, 278, 417, 834, 1481, 2363, 2962, 4443, 4726, 7089, 8886, 14178, 25177, 50354, 75531, 151062, 205859, 411718, 617577, 1235154, 3499603, 6999206, 10498809, 20997618]

約数ペア:

[(1, 20997618), (2, 10498809), (3, 6999206), (6, 3499603), (17, 1235154), (34, 617577), (51, 411718), (102, 205859), (139, 151062), (278, 75531), (417, 50354), (834, 25177), (1481, 14178), (2363, 8886), (2962, 7089), (4443, 4726)]