21819780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13469}}^1$

素因数の和:13490

約数の個数: 60

約数和(自身を含む): 68454540

約数和(自身を除く): 46634760

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13469, 26938, 40407, 53876, 67345, 80814, 121221, 134690, 161628, 202035, 242442, 269380, 363663, 404070, 484884, 606105, 727326, 808140, 1090989, 1212210, 1454652, 1818315, 2181978, 2424420, 3636630, 4363956, 5454945, 7273260, 10909890, 21819780]

約数ペア:

[(1, 21819780), (2, 10909890), (3, 7273260), (4, 5454945), (5, 4363956), (6, 3636630), (9, 2424420), (10, 2181978), (12, 1818315), (15, 1454652), (18, 1212210), (20, 1090989), (27, 808140), (30, 727326), (36, 606105), (45, 484884), (54, 404070), (60, 363663), (81, 269380), (90, 242442), (108, 202035), (135, 161628), (162, 134690), (180, 121221), (270, 80814), (324, 67345), (405, 53876), (540, 40407), (810, 26938), (1620, 13469)]