20902542

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 42819840

約数和(自身を除く): 21917298

約数列:

[1, 2, 3, 6, 71, 139, 142, 213, 278, 353, 417, 426, 706, 834, 1059, 2118, 9869, 19738, 25063, 29607, 49067, 50126, 59214, 75189, 98134, 147201, 150378, 294402, 3483757, 6967514, 10451271, 20902542]

約数ペア:

[(1, 20902542), (2, 10451271), (3, 6967514), (6, 3483757), (71, 294402), (139, 150378), (142, 147201), (213, 98134), (278, 75189), (353, 59214), (417, 50126), (426, 49067), (706, 29607), (834, 25063), (1059, 19738), (2118, 9869)]