21898635

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 41762304

約数和(自身を除く): 19863669

約数列:

[1, 3, 5, 11, 15, 17, 33, 37, 51, 55, 85, 111, 165, 185, 187, 211, 255, 407, 555, 561, 629, 633, 935, 1055, 1221, 1887, 2035, 2321, 2805, 3145, 3165, 3587, 6105, 6919, 6963, 7807, 9435, 10761, 11605, 17935, 20757, 23421, 34595, 34815, 39035, 39457, 53805, 85877, 103785, 117105, 118371, 132719, 197285, 257631, 398157, 429385, 591855, 663595, 1288155, 1459909, 1990785, 4379727, 7299545, 21898635]

約数ペア:

[(1, 21898635), (3, 7299545), (5, 4379727), (11, 1990785), (15, 1459909), (17, 1288155), (33, 663595), (37, 591855), (51, 429385), (55, 398157), (85, 257631), (111, 197285), (165, 132719), (185, 118371), (187, 117105), (211, 103785), (255, 85877), (407, 53805), (555, 39457), (561, 39035), (629, 34815), (633, 34595), (935, 23421), (1055, 20757), (1221, 17935), (1887, 11605), (2035, 10761), (2321, 9435), (2805, 7807), (3145, 6963), (3165, 6919), (3587, 6105)]