217892

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 416640

約数和(自身を除く): 198748

約数列:

[1, 2, 4, 19, 38, 47, 61, 76, 94, 122, 188, 244, 893, 1159, 1786, 2318, 2867, 3572, 4636, 5734, 11468, 54473, 108946, 217892]

約数ペア:

[(1, 217892), (2, 108946), (4, 54473), (19, 11468), (38, 5734), (47, 4636), (61, 3572), (76, 2867), (94, 2318), (122, 1786), (188, 1159), (244, 893)]