78912639

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21757}}^1$

素因数の和:21807

約数の個数: 24

約数和(自身を含む): 126718592

約数和(自身を除く): 47805953

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 21757, 65271, 195813, 282841, 674467, 848523, 2023401, 2545569, 6070203, 8768071, 26304213, 78912639]

約数ペア:

[(1, 78912639), (3, 26304213), (9, 8768071), (13, 6070203), (31, 2545569), (39, 2023401), (93, 848523), (117, 674467), (279, 282841), (403, 195813), (1209, 65271), (3627, 21757)]