18164419

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 23740416

約数和(自身を除く): 5575997

約数列:

[1, 7, 13, 31, 47, 91, 137, 217, 329, 403, 611, 959, 1457, 1781, 2821, 4247, 4277, 6439, 10199, 12467, 18941, 29729, 45073, 55211, 83707, 132587, 199609, 386477, 585949, 1397263, 2594917, 18164419]

約数ペア:

[(1, 18164419), (7, 2594917), (13, 1397263), (31, 585949), (47, 386477), (91, 199609), (137, 132587), (217, 83707), (329, 55211), (403, 45073), (611, 29729), (959, 18941), (1457, 12467), (1781, 10199), (2821, 6439), (4247, 4277)]