18706138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 31819392

約数和(自身を除く): 13113254

約数列:

[1, 2, 11, 22, 53, 61, 106, 122, 263, 526, 583, 671, 1166, 1342, 2893, 3233, 5786, 6466, 13939, 16043, 27878, 32086, 35563, 71126, 153329, 176473, 306658, 352946, 850279, 1700558, 9353069, 18706138]

約数ペア:

[(1, 18706138), (2, 9353069), (11, 1700558), (22, 850279), (53, 352946), (61, 306658), (106, 176473), (122, 153329), (263, 71126), (526, 35563), (583, 32086), (671, 27878), (1166, 16043), (1342, 13939), (2893, 6466), (3233, 5786)]