12578839

素因数分解:

$7^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 30

約数和(自身を含む): 16402656

約数和(自身を除く): 3823817

約数列:

[1, 7, 13, 31, 49, 91, 169, 217, 343, 403, 637, 1183, 1519, 2401, 2821, 4459, 5239, 8281, 10633, 19747, 31213, 36673, 57967, 74431, 138229, 256711, 405769, 967603, 1796977, 12578839]

約数ペア:

[(1, 12578839), (7, 1796977), (13, 967603), (31, 405769), (49, 256711), (91, 138229), (169, 74431), (217, 57967), (343, 36673), (403, 31213), (637, 19747), (1183, 10633), (1519, 8281), (2401, 5239), (2821, 4459)]