251766

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:276

約数の個数: 24

約数和(自身を含む): 555984

約数和(自身を除く): 304218

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 197, 213, 394, 426, 591, 639, 1182, 1278, 1773, 3546, 13987, 27974, 41961, 83922, 125883, 251766]

約数ペア:

[(1, 251766), (2, 125883), (3, 83922), (6, 41961), (9, 27974), (18, 13987), (71, 3546), (142, 1773), (197, 1278), (213, 1182), (394, 639), (426, 591)]