53722221

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 83939328

約数和(自身を除く): 30217107

約数列:

[1, 3, 7, 21, 71, 137, 213, 263, 411, 497, 789, 959, 1491, 1841, 2877, 5523, 9727, 18673, 29181, 36031, 56019, 68089, 108093, 130711, 204267, 252217, 392133, 756651, 2558201, 7674603, 17907407, 53722221]

約数ペア:

[(1, 53722221), (3, 17907407), (7, 7674603), (21, 2558201), (71, 756651), (137, 392133), (213, 252217), (263, 204267), (411, 130711), (497, 108093), (789, 68089), (959, 56019), (1491, 36031), (1841, 29181), (2877, 18673), (5523, 9727)]