261857778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{479593}}^1$

素因数の和:479618

約数の個数: 32

約数和(自身を含む): 644574336

約数和(自身を除く): 382716558

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 479593, 959186, 1438779, 2877558, 3357151, 6234709, 6714302, 10071453, 12469418, 18704127, 20142906, 37408254, 43642963, 87285926, 130928889, 261857778]

約数ペア:

[(1, 261857778), (2, 130928889), (3, 87285926), (6, 43642963), (7, 37408254), (13, 20142906), (14, 18704127), (21, 12469418), (26, 10071453), (39, 6714302), (42, 6234709), (78, 3357151), (91, 2877558), (182, 1438779), (273, 959186), (546, 479593)]