21190442

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16633}}^1$

素因数の和:16662

約数の個数: 24

約数和(自身を含む): 39821796

約数和(自身を除く): 18631354

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 16633, 33266, 116431, 216229, 232862, 432458, 815017, 1513603, 1630034, 3027206, 10595221, 21190442]

約数ペア:

[(1, 21190442), (2, 10595221), (7, 3027206), (13, 1630034), (14, 1513603), (26, 815017), (49, 432458), (91, 232862), (98, 216229), (182, 116431), (637, 33266), (1274, 16633)]