22521681

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 40569984

約数和(自身を除く): 18048303

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 107, 117, 257, 273, 321, 749, 771, 819, 963, 1391, 1799, 2247, 2313, 3341, 4173, 5397, 6741, 9737, 10023, 12519, 16191, 23387, 27499, 29211, 30069, 70161, 82497, 87633, 192493, 210483, 247491, 357487, 577479, 1072461, 1732437, 2502409, 3217383, 7507227, 22521681]

約数ペア:

[(1, 22521681), (3, 7507227), (7, 3217383), (9, 2502409), (13, 1732437), (21, 1072461), (39, 577479), (63, 357487), (91, 247491), (107, 210483), (117, 192493), (257, 87633), (273, 82497), (321, 70161), (749, 30069), (771, 29211), (819, 27499), (963, 23387), (1391, 16191), (1799, 12519), (2247, 10023), (2313, 9737), (3341, 6741), (4173, 5397)]