18874635

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2251}}^1$

素因数の和:2315

約数の個数: 32

約数和(自身を含む): 33293568

約数和(自身を除く): 14418933

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2251, 2795, 6753, 8385, 11255, 29263, 33765, 87789, 96793, 146315, 290379, 438945, 483965, 1258309, 1451895, 3774927, 6291545, 18874635]

約数ペア:

[(1, 18874635), (3, 6291545), (5, 3774927), (13, 1451895), (15, 1258309), (39, 483965), (43, 438945), (65, 290379), (129, 146315), (195, 96793), (215, 87789), (559, 33765), (645, 29263), (1677, 11255), (2251, 8385), (2795, 6753)]