21841281

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31517}}^1$

素因数の和:31541

約数の個数: 24

約数和(自身を含む): 39334464

約数和(自身を除く): 17493183

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31517, 94551, 220619, 283653, 346687, 661857, 1040061, 1985571, 2426809, 3120183, 7280427, 21841281]

約数ペア:

[(1, 21841281), (3, 7280427), (7, 3120183), (9, 2426809), (11, 1985571), (21, 1040061), (33, 661857), (63, 346687), (77, 283653), (99, 220619), (231, 94551), (693, 31517)]