19171581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 32901120

約数和(自身を除く): 13729539

約数列:

[1, 3, 11, 13, 23, 29, 33, 39, 67, 69, 87, 143, 201, 253, 299, 319, 377, 429, 667, 737, 759, 871, 897, 957, 1131, 1541, 1943, 2001, 2211, 2613, 3289, 4147, 4623, 5829, 7337, 8671, 9581, 9867, 12441, 16951, 20033, 21373, 22011, 25259, 26013, 28743, 44689, 50853, 60099, 64119, 75777, 95381, 134067, 220363, 277849, 286143, 491579, 580957, 661089, 833547, 1474737, 1742871, 6390527, 19171581]

約数ペア:

[(1, 19171581), (3, 6390527), (11, 1742871), (13, 1474737), (23, 833547), (29, 661089), (33, 580957), (39, 491579), (67, 286143), (69, 277849), (87, 220363), (143, 134067), (201, 95381), (253, 75777), (299, 64119), (319, 60099), (377, 50853), (429, 44689), (667, 28743), (737, 26013), (759, 25259), (871, 22011), (897, 21373), (957, 20033), (1131, 16951), (1541, 12441), (1943, 9867), (2001, 9581), (2211, 8671), (2613, 7337), (3289, 5829), (4147, 4623)]