21814191

素因数分解:

$3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:585

約数の個数: 40

約数和(自身を含む): 37790720

約数和(自身を除く): 15976529

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 237, 487, 553, 567, 711, 1461, 1659, 2133, 3409, 4383, 4977, 6399, 10227, 13149, 14931, 30681, 38473, 39447, 44793, 92043, 115419, 269311, 276129, 346257, 807933, 1038771, 2423799, 3116313, 7271397, 21814191]

約数ペア:

[(1, 21814191), (3, 7271397), (7, 3116313), (9, 2423799), (21, 1038771), (27, 807933), (63, 346257), (79, 276129), (81, 269311), (189, 115419), (237, 92043), (487, 44793), (553, 39447), (567, 38473), (711, 30681), (1461, 14931), (1659, 13149), (2133, 10227), (3409, 6399), (4383, 4977)]