42421953

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 68843520

約数和(自身を除く): 26421567

約数列:

[1, 3, 7, 17, 21, 51, 119, 331, 357, 359, 993, 1077, 2317, 2513, 5627, 6103, 6951, 7539, 16881, 18309, 39389, 42721, 118167, 118829, 128163, 356487, 831803, 2020093, 2495409, 6060279, 14140651, 42421953]

約数ペア:

[(1, 42421953), (3, 14140651), (7, 6060279), (17, 2495409), (21, 2020093), (51, 831803), (119, 356487), (331, 128163), (357, 118829), (359, 118167), (993, 42721), (1077, 39389), (2317, 18309), (2513, 16881), (5627, 7539), (6103, 6951)]