19979336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10111}}^1$

素因数の和:10149

約数の個数: 32

約数和(自身を含む): 42470400

約数和(自身を除く): 22491064

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10111, 20222, 40444, 80888, 131443, 192109, 262886, 384218, 525772, 768436, 1051544, 1536872, 2497417, 4994834, 9989668, 19979336]

約数ペア:

[(1, 19979336), (2, 9989668), (4, 4994834), (8, 2497417), (13, 1536872), (19, 1051544), (26, 768436), (38, 525772), (52, 384218), (76, 262886), (104, 192109), (152, 131443), (247, 80888), (494, 40444), (988, 20222), (1976, 10111)]