18243407

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 24084480

約数和(自身を除く): 5841073

約数列:

[1, 7, 13, 29, 31, 91, 203, 217, 223, 377, 403, 899, 1561, 2639, 2821, 2899, 6293, 6467, 6913, 11687, 20293, 45269, 48391, 81809, 84071, 89869, 200477, 588497, 629083, 1403339, 2606201, 18243407]

約数ペア:

[(1, 18243407), (7, 2606201), (13, 1403339), (29, 629083), (31, 588497), (91, 200477), (203, 89869), (217, 84071), (223, 81809), (377, 48391), (403, 45269), (899, 20293), (1561, 11687), (2639, 6913), (2821, 6467), (2899, 6293)]