20615538

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{463}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 42561792

約数和(自身を除く): 21946254

約数列:

[1, 2, 3, 6, 41, 82, 123, 181, 246, 362, 463, 543, 926, 1086, 1389, 2778, 7421, 14842, 18983, 22263, 37966, 44526, 56949, 83803, 113898, 167606, 251409, 502818, 3435923, 6871846, 10307769, 20615538]

約数ペア:

[(1, 20615538), (2, 10307769), (3, 6871846), (6, 3435923), (41, 502818), (82, 251409), (123, 167606), (181, 113898), (246, 83803), (362, 56949), (463, 44526), (543, 37966), (926, 22263), (1086, 18983), (1389, 14842), (2778, 7421)]