20830238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 37007712

約数和(自身を除く): 16177474

約数列:

[1, 2, 11, 13, 22, 26, 143, 173, 286, 346, 421, 842, 1903, 2249, 3806, 4498, 4631, 5473, 9262, 10946, 24739, 49478, 60203, 72833, 120406, 145666, 801163, 946829, 1602326, 1893658, 10415119, 20830238]

約数ペア:

[(1, 20830238), (2, 10415119), (11, 1893658), (13, 1602326), (22, 946829), (26, 801163), (143, 145666), (173, 120406), (286, 72833), (346, 60203), (421, 49478), (842, 24739), (1903, 10946), (2249, 9262), (3806, 5473), (4498, 4631)]