21731416

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1381}}^1$

素因数の和:1675

約数の個数: 32

約数和(自身を含む): 46766880

約数和(自身を除く): 25035464

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1381, 1967, 2248, 2762, 3934, 5524, 7868, 9667, 11048, 15736, 19334, 38668, 77336, 388061, 776122, 1552244, 2716427, 3104488, 5432854, 10865708, 21731416]

約数ペア:

[(1, 21731416), (2, 10865708), (4, 5432854), (7, 3104488), (8, 2716427), (14, 1552244), (28, 776122), (56, 388061), (281, 77336), (562, 38668), (1124, 19334), (1381, 15736), (1967, 11048), (2248, 9667), (2762, 7868), (3934, 5524)]