21848827

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 31200768

約数和(自身を除く): 9351941

約数列:

[1, 7, 11, 13, 23, 73, 77, 91, 143, 161, 169, 253, 299, 511, 803, 949, 1001, 1183, 1679, 1771, 1859, 2093, 3289, 3887, 5621, 6643, 10439, 11753, 12337, 13013, 18469, 21827, 23023, 27209, 42757, 73073, 86359, 129283, 135707, 152789, 240097, 283751, 299299, 949949, 1680679, 1986257, 3121261, 21848827]

約数ペア:

[(1, 21848827), (7, 3121261), (11, 1986257), (13, 1680679), (23, 949949), (73, 299299), (77, 283751), (91, 240097), (143, 152789), (161, 135707), (169, 129283), (253, 86359), (299, 73073), (511, 42757), (803, 27209), (949, 23023), (1001, 21827), (1183, 18469), (1679, 13013), (1771, 12337), (1859, 11753), (2093, 10439), (3289, 6643), (3887, 5621)]