21725487

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5147}}^1$

素因数の和:5227

約数の個数: 24

約数和(自身を含む): 36406656

約数和(自身を除く): 14681169

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 5147, 15441, 36029, 46323, 108087, 324261, 344849, 1034547, 2413943, 3103641, 7241829, 21725487]

約数ペア:

[(1, 21725487), (3, 7241829), (7, 3103641), (9, 2413943), (21, 1034547), (63, 344849), (67, 324261), (201, 108087), (469, 46323), (603, 36029), (1407, 15441), (4221, 5147)]