16559921

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^2$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 20998656

約数和(自身を除く): 4438735

約数列:

[1, 7, 17, 31, 67, 119, 217, 469, 527, 1139, 2077, 3689, 4489, 7973, 14539, 31423, 35309, 76313, 139159, 247163, 534191, 974113, 2365703, 16559921]

約数ペア:

[(1, 16559921), (7, 2365703), (17, 974113), (31, 534191), (67, 247163), (119, 139159), (217, 76313), (469, 35309), (527, 31423), (1139, 14539), (2077, 7973), (3689, 4489)]