19943157

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 29748096

約数和(自身を除く): 9804939

約数列:

[1, 3, 13, 39, 61, 83, 101, 183, 249, 303, 793, 1079, 1313, 2379, 3237, 3939, 5063, 6161, 8383, 15189, 18483, 25149, 65819, 80093, 108979, 197457, 240279, 326937, 511363, 1534089, 6647719, 19943157]

約数ペア:

[(1, 19943157), (3, 6647719), (13, 1534089), (39, 511363), (61, 326937), (83, 240279), (101, 197457), (183, 108979), (249, 80093), (303, 65819), (793, 25149), (1079, 18483), (1313, 15189), (2379, 8383), (3237, 6161), (3939, 5063)]