21261933

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{487}}^1$

素因数の和:524

約数の個数: 60

約数和(自身を含む): 40388832

約数和(自身を除く): 19126899

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 147, 189, 231, 297, 441, 487, 539, 567, 693, 891, 1323, 1461, 1617, 2079, 3409, 3969, 4383, 4851, 5357, 6237, 10227, 13149, 14553, 16071, 23863, 30681, 37499, 39447, 43659, 48213, 71589, 92043, 112497, 144639, 214767, 262493, 276129, 337491, 433917, 644301, 787479, 1012473, 1932903, 2362437, 3037419, 7087311, 21261933]

約数ペア:

[(1, 21261933), (3, 7087311), (7, 3037419), (9, 2362437), (11, 1932903), (21, 1012473), (27, 787479), (33, 644301), (49, 433917), (63, 337491), (77, 276129), (81, 262493), (99, 214767), (147, 144639), (189, 112497), (231, 92043), (297, 71589), (441, 48213), (487, 43659), (539, 39447), (567, 37499), (693, 30681), (891, 23863), (1323, 16071), (1461, 14553), (1617, 13149), (2079, 10227), (3409, 6237), (3969, 5357), (4383, 4851)]