16691857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 21776384

約数和(自身を除く): 5084527

約数列:

[1, 7, 13, 31, 61, 91, 97, 217, 403, 427, 679, 793, 1261, 1891, 2821, 3007, 5551, 5917, 8827, 13237, 21049, 24583, 39091, 41419, 76921, 172081, 183427, 273637, 538447, 1283989, 2384551, 16691857]

約数ペア:

[(1, 16691857), (7, 2384551), (13, 1283989), (31, 538447), (61, 273637), (91, 183427), (97, 172081), (217, 76921), (403, 41419), (427, 39091), (679, 24583), (793, 21049), (1261, 13237), (1891, 8827), (2821, 5917), (3007, 5551)]