21894929

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 27114240

約数和(自身を除く): 5219311

約数列:

[1, 7, 17, 79, 119, 137, 289, 553, 959, 1343, 2023, 2329, 9401, 10823, 16303, 22831, 39593, 75761, 159817, 183991, 277151, 1287937, 3127847, 21894929]

約数ペア:

[(1, 21894929), (7, 3127847), (17, 1287937), (79, 277151), (119, 183991), (137, 159817), (289, 75761), (553, 39593), (959, 22831), (1343, 16303), (2023, 10823), (2329, 9401)]