18145239

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 30583008

約数和(自身を除く): 12437769

約数列:

[1, 3, 7, 17, 21, 49, 51, 53, 119, 137, 147, 159, 357, 371, 411, 833, 901, 959, 1113, 2329, 2499, 2597, 2703, 2877, 6307, 6713, 6987, 7261, 7791, 16303, 18921, 20139, 21783, 44149, 48909, 50827, 114121, 123437, 132447, 152481, 342363, 355789, 370311, 864059, 1067367, 2592177, 6048413, 18145239]

約数ペア:

[(1, 18145239), (3, 6048413), (7, 2592177), (17, 1067367), (21, 864059), (49, 370311), (51, 355789), (53, 342363), (119, 152481), (137, 132447), (147, 123437), (159, 114121), (357, 50827), (371, 48909), (411, 44149), (833, 21783), (901, 20139), (959, 18921), (1113, 16303), (2329, 7791), (2499, 7261), (2597, 6987), (2703, 6713), (2877, 6307)]