21078414

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{55763}}^1$

素因数の和:55781

約数の個数: 32

約数和(自身を含む): 53533440

約数和(自身を除く): 32455026

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 55763, 111526, 167289, 334578, 390341, 501867, 780682, 1003734, 1171023, 1505601, 2342046, 3011202, 3513069, 7026138, 10539207, 21078414]

約数ペア:

[(1, 21078414), (2, 10539207), (3, 7026138), (6, 3513069), (7, 3011202), (9, 2342046), (14, 1505601), (18, 1171023), (21, 1003734), (27, 780682), (42, 501867), (54, 390341), (63, 334578), (126, 167289), (189, 111526), (378, 55763)]