21876701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 6911779

約数列:

[1, 7, 11, 29, 77, 97, 101, 203, 319, 679, 707, 1067, 1111, 2233, 2813, 2929, 7469, 7777, 9797, 19691, 20503, 30943, 32219, 68579, 107767, 216601, 225533, 284113, 754369, 1988791, 3125243, 21876701]

約数ペア:

[(1, 21876701), (7, 3125243), (11, 1988791), (29, 754369), (77, 284113), (97, 225533), (101, 216601), (203, 107767), (319, 68579), (679, 32219), (707, 30943), (1067, 20503), (1111, 19691), (2233, 9797), (2813, 7777), (2929, 7469)]