21787430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{761}}^1$

素因数の和:1184

約数の個数: 32

約数和(自身を含む): 44988480

約数和(自身を除く): 23201050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 761, 818, 1522, 2045, 2863, 3805, 4090, 5327, 5726, 7610, 10654, 14315, 26635, 28630, 53270, 311249, 622498, 1556245, 2178743, 3112490, 4357486, 10893715, 21787430]

約数ペア:

[(1, 21787430), (2, 10893715), (5, 4357486), (7, 3112490), (10, 2178743), (14, 1556245), (35, 622498), (70, 311249), (409, 53270), (761, 28630), (818, 26635), (1522, 14315), (2045, 10654), (2863, 7610), (3805, 5726), (4090, 5327)]