18892237

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 24786944

約数和(自身を除く): 5894707

約数列:

[1, 7, 13, 31, 37, 91, 181, 217, 259, 403, 481, 1147, 1267, 2353, 2821, 3367, 5611, 6697, 8029, 14911, 16471, 39277, 46879, 72943, 87061, 104377, 207607, 510601, 609427, 1453249, 2698891, 18892237]

約数ペア:

[(1, 18892237), (7, 2698891), (13, 1453249), (31, 609427), (37, 510601), (91, 207607), (181, 104377), (217, 87061), (259, 72943), (403, 46879), (481, 39277), (1147, 16471), (1267, 14911), (2353, 8029), (2821, 6697), (3367, 5611)]