16820341181

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{617}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 20533658112

約数和(自身を除く): 3713316931

約数列:

[1, 7, 31, 49, 131, 137, 217, 617, 917, 959, 1519, 4061, 4247, 4319, 6419, 6713, 17947, 19127, 28427, 29729, 30233, 80827, 84529, 125629, 133889, 198989, 208103, 556357, 565789, 591703, 879403, 937223, 2505637, 2620399, 3894499, 3960523, 4141921, 11073299, 17539459, 18342793, 27261493, 77513093, 122776213, 128399551, 343272269, 542591651, 2402905883, 16820341181]

約数ペア:

[(1, 16820341181), (7, 2402905883), (31, 542591651), (49, 343272269), (131, 128399551), (137, 122776213), (217, 77513093), (617, 27261493), (917, 18342793), (959, 17539459), (1519, 11073299), (4061, 4141921), (4247, 3960523), (4319, 3894499), (6419, 2620399), (6713, 2505637), (17947, 937223), (19127, 879403), (28427, 591703), (29729, 565789), (30233, 556357), (80827, 208103), (84529, 198989), (125629, 133889)]