17881017

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 31051776

約数和(自身を除く): 13170759

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 121, 217, 227, 231, 341, 363, 651, 681, 847, 1023, 1589, 2387, 2497, 2541, 3751, 4767, 7037, 7161, 7491, 11253, 17479, 21111, 26257, 27467, 49259, 52437, 77407, 78771, 82401, 147777, 192269, 232221, 541849, 576807, 851477, 1625547, 2554431, 5960339, 17881017]

約数ペア:

[(1, 17881017), (3, 5960339), (7, 2554431), (11, 1625547), (21, 851477), (31, 576807), (33, 541849), (77, 232221), (93, 192269), (121, 147777), (217, 82401), (227, 78771), (231, 77407), (341, 52437), (363, 49259), (651, 27467), (681, 26257), (847, 21111), (1023, 17479), (1589, 11253), (2387, 7491), (2497, 7161), (2541, 7037), (3751, 4767)]