7720839

素因数分解:

$3^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 56

約数和(自身を含む): 14165280

約数和(自身を除く): 6444441

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 89, 119, 153, 189, 243, 267, 357, 459, 567, 623, 729, 801, 1071, 1377, 1513, 1701, 1869, 2403, 3213, 4131, 4539, 5103, 5607, 7209, 9639, 10591, 12393, 13617, 16821, 21627, 28917, 31773, 40851, 50463, 64881, 86751, 95319, 122553, 151389, 285957, 367659, 454167, 857871, 1102977, 2573613, 7720839]

約数ペア:

[(1, 7720839), (3, 2573613), (7, 1102977), (9, 857871), (17, 454167), (21, 367659), (27, 285957), (51, 151389), (63, 122553), (81, 95319), (89, 86751), (119, 64881), (153, 50463), (189, 40851), (243, 31773), (267, 28917), (357, 21627), (459, 16821), (567, 13617), (623, 12393), (729, 10591), (801, 9639), (1071, 7209), (1377, 5607), (1513, 5103), (1701, 4539), (1869, 4131), (2403, 3213)]