21796715545

素因数分解:

$5^1\times {\mathrm{11}}^4\times {\mathrm{19}}^1\times {\mathrm{15671}}^1$

素因数の和:15739

約数の個数: 40

約数和(自身を含む): 30287707200

約数和(自身を除く): 8490991655

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 1045, 1331, 2299, 6655, 11495, 14641, 15671, 25289, 73205, 78355, 126445, 172381, 278179, 297749, 861905, 1390895, 1488745, 1896191, 3275239, 9480955, 16376195, 20858101, 36027629, 104290505, 180138145, 229439111, 396303919, 1147195555, 1981519595, 4359343109, 21796715545]

約数ペア:

[(1, 21796715545), (5, 4359343109), (11, 1981519595), (19, 1147195555), (55, 396303919), (95, 229439111), (121, 180138145), (209, 104290505), (605, 36027629), (1045, 20858101), (1331, 16376195), (2299, 9480955), (6655, 3275239), (11495, 1896191), (14641, 1488745), (15671, 1390895), (25289, 861905), (73205, 297749), (78355, 278179), (126445, 172381)]