16869245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 22498560

約数和(自身を除く): 5629315

約数列:

[1, 5, 19, 41, 61, 71, 95, 205, 305, 355, 779, 1159, 1349, 2501, 2911, 3895, 4331, 5795, 6745, 12505, 14555, 21655, 47519, 55309, 82289, 177571, 237595, 276545, 411445, 887855, 3373849, 16869245]

約数ペア:

[(1, 16869245), (5, 3373849), (19, 887855), (41, 411445), (61, 276545), (71, 237595), (95, 177571), (205, 82289), (305, 55309), (355, 47519), (779, 21655), (1159, 14555), (1349, 12505), (2501, 6745), (2911, 5795), (3895, 4331)]