201922721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 278277120

約数和(自身を除く): 76354399

約数列:

[1, 7, 11, 13, 59, 77, 91, 143, 169, 263, 413, 649, 767, 1001, 1183, 1841, 1859, 2893, 3419, 4543, 5369, 8437, 9971, 13013, 15517, 20251, 23933, 37609, 44447, 59059, 69797, 108619, 109681, 170687, 201721, 263263, 311129, 488917, 767767, 1194809, 1412047, 2218931, 2622373, 3422419, 15532517, 18356611, 28846103, 201922721]

約数ペア:

[(1, 201922721), (7, 28846103), (11, 18356611), (13, 15532517), (59, 3422419), (77, 2622373), (91, 2218931), (143, 1412047), (169, 1194809), (263, 767767), (413, 488917), (649, 311129), (767, 263263), (1001, 201721), (1183, 170687), (1841, 109681), (1859, 108619), (2893, 69797), (3419, 59059), (4543, 44447), (5369, 37609), (8437, 23933), (9971, 20251), (13013, 15517)]