39720331

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 48445440

約数和(自身を除く): 8725109

約数列:

[1, 7, 31, 49, 79, 217, 331, 553, 1519, 2317, 2449, 3871, 10261, 16219, 17143, 26149, 71827, 120001, 183043, 502789, 810619, 1281301, 5674333, 39720331]

約数ペア:

[(1, 39720331), (7, 5674333), (31, 1281301), (49, 810619), (79, 502789), (217, 183043), (331, 120001), (553, 71827), (1519, 26149), (2317, 17143), (2449, 16219), (3871, 10261)]