81811786

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2473}}^1$

素因数の和:2638

約数の個数: 32

約数和(自身を含む): 149627520

約数和(自身を除く): 67815734

約数列:

[1, 2, 7, 14, 17, 34, 119, 139, 238, 278, 973, 1946, 2363, 2473, 4726, 4946, 16541, 17311, 33082, 34622, 42041, 84082, 294287, 343747, 588574, 687494, 2406229, 4812458, 5843699, 11687398, 40905893, 81811786]

約数ペア:

[(1, 81811786), (2, 40905893), (7, 11687398), (14, 5843699), (17, 4812458), (34, 2406229), (119, 687494), (139, 588574), (238, 343747), (278, 294287), (973, 84082), (1946, 42041), (2363, 34622), (2473, 33082), (4726, 17311), (4946, 16541)]