21767683

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2551}}^1$

素因数の和:2634

約数の個数: 16

約数和(自身を含む): 26459136

約数和(自身を除く): 4691453

約数列:

[1, 7, 23, 53, 161, 371, 1219, 2551, 8533, 17857, 58673, 135203, 410711, 946421, 3109669, 21767683]

約数ペア:

[(1, 21767683), (7, 3109669), (23, 946421), (53, 410711), (161, 135203), (371, 58673), (1219, 17857), (2551, 8533)]