31581979

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 39223296

約数和(自身を除く): 7641317

約数列:

[1, 11, 13, 37, 47, 127, 143, 407, 481, 517, 611, 1397, 1651, 1739, 4699, 5291, 5969, 6721, 18161, 19129, 22607, 51689, 61087, 65659, 77597, 220853, 248677, 671957, 853567, 2429383, 2871089, 31581979]

約数ペア:

[(1, 31581979), (11, 2871089), (13, 2429383), (37, 853567), (47, 671957), (127, 248677), (143, 220853), (407, 77597), (481, 65659), (517, 61087), (611, 51689), (1397, 22607), (1651, 19129), (1739, 18161), (4699, 6721), (5291, 5969)]