31987179

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6427}}^1$

素因数の和:6519

約数の個数: 24

約数和(自身を含む): 53480960

約数和(自身を除く): 21493781

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 4977, 6427, 19281, 44989, 57843, 134967, 404901, 507733, 1523199, 3554131, 4569597, 10662393, 31987179]

約数ペア:

[(1, 31987179), (3, 10662393), (7, 4569597), (9, 3554131), (21, 1523199), (63, 507733), (79, 404901), (237, 134967), (553, 57843), (711, 44989), (1659, 19281), (4977, 6427)]