21270095

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 32196096

約数和(自身を除く): 10926001

約数列:

[1, 5, 7, 11, 35, 55, 77, 101, 385, 505, 547, 707, 1111, 2735, 3535, 3829, 5555, 6017, 7777, 19145, 30085, 38885, 42119, 55247, 210595, 276235, 386729, 607717, 1933645, 3038585, 4254019, 21270095]

約数ペア:

[(1, 21270095), (5, 4254019), (7, 3038585), (11, 1933645), (35, 607717), (55, 386729), (77, 276235), (101, 210595), (385, 55247), (505, 42119), (547, 38885), (707, 30085), (1111, 19145), (2735, 7777), (3535, 6017), (3829, 5555)]