19557304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1087}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 39755520

約数和(自身を除く): 20198216

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1087, 1384, 2174, 2249, 4348, 4498, 8696, 8996, 14131, 17992, 28262, 56524, 113048, 188051, 376102, 752204, 1504408, 2444663, 4889326, 9778652, 19557304]

約数ペア:

[(1, 19557304), (2, 9778652), (4, 4889326), (8, 2444663), (13, 1504408), (26, 752204), (52, 376102), (104, 188051), (173, 113048), (346, 56524), (692, 28262), (1087, 17992), (1384, 14131), (2174, 8996), (2249, 8696), (4348, 4498)]