21748635

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 41664000

約数和(自身を除く): 19915365

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 61, 95, 135, 139, 171, 183, 285, 305, 417, 513, 549, 695, 855, 915, 1159, 1251, 1647, 2085, 2565, 2641, 2745, 3477, 3753, 5795, 6255, 7923, 8235, 8479, 10431, 13205, 17385, 18765, 23769, 25437, 31293, 39615, 42395, 52155, 71307, 76311, 118845, 127185, 156465, 161101, 228933, 356535, 381555, 483303, 805505, 1144665, 1449909, 2416515, 4349727, 7249545, 21748635]

約数ペア:

[(1, 21748635), (3, 7249545), (5, 4349727), (9, 2416515), (15, 1449909), (19, 1144665), (27, 805505), (45, 483303), (57, 381555), (61, 356535), (95, 228933), (135, 161101), (139, 156465), (171, 127185), (183, 118845), (285, 76311), (305, 71307), (417, 52155), (513, 42395), (549, 39615), (695, 31293), (855, 25437), (915, 23769), (1159, 18765), (1251, 17385), (1647, 13205), (2085, 10431), (2565, 8479), (2641, 8235), (2745, 7923), (3477, 6255), (3753, 5795)]