21309586

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:258

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 13236590

約数列:

[1, 2, 31, 41, 62, 82, 83, 101, 166, 202, 1271, 2542, 2573, 3131, 3403, 4141, 5146, 6262, 6806, 8282, 8383, 16766, 105493, 128371, 210986, 256742, 259873, 343703, 519746, 687406, 10654793, 21309586]

約数ペア:

[(1, 21309586), (2, 10654793), (31, 687406), (41, 519746), (62, 343703), (82, 259873), (83, 256742), (101, 210986), (166, 128371), (202, 105493), (1271, 16766), (2542, 8383), (2573, 8282), (3131, 6806), (3403, 6262), (4141, 5146)]