21665272

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 20033528

約数列:

[1, 2, 4, 8, 59, 118, 197, 233, 236, 394, 466, 472, 788, 932, 1576, 1864, 11623, 13747, 23246, 27494, 45901, 46492, 54988, 91802, 92984, 109976, 183604, 367208, 2708159, 5416318, 10832636, 21665272]

約数ペア:

[(1, 21665272), (2, 10832636), (4, 5416318), (8, 2708159), (59, 367208), (118, 183604), (197, 109976), (233, 92984), (236, 91802), (394, 54988), (466, 46492), (472, 45901), (788, 27494), (932, 23246), (1576, 13747), (1864, 11623)]