17896221

素因数分解:

$3^7\times 7^2\times {\mathrm{167}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 31409280

約数和(自身を除く): 13513059

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 167, 189, 243, 441, 501, 567, 729, 1169, 1323, 1503, 1701, 2187, 3507, 3969, 4509, 5103, 8183, 10521, 11907, 13527, 15309, 24549, 31563, 35721, 40581, 73647, 94689, 107163, 121743, 220941, 284067, 365229, 662823, 852201, 1988469, 2556603, 5965407, 17896221]

約数ペア:

[(1, 17896221), (3, 5965407), (7, 2556603), (9, 1988469), (21, 852201), (27, 662823), (49, 365229), (63, 284067), (81, 220941), (147, 121743), (167, 107163), (189, 94689), (243, 73647), (441, 40581), (501, 35721), (567, 31563), (729, 24549), (1169, 15309), (1323, 13527), (1503, 11907), (1701, 10521), (2187, 8183), (3507, 5103), (3969, 4509)]