19561338

素因数分解:

$2^1\times 3^4\times {\mathrm{120749}}^1$

素因数の和:120763

約数の個数: 20

約数和(自身を含む): 43832250

約数和(自身を除く): 24270912

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 120749, 241498, 362247, 724494, 1086741, 2173482, 3260223, 6520446, 9780669, 19561338]

約数ペア:

[(1, 19561338), (2, 9780669), (3, 6520446), (6, 3260223), (9, 2173482), (18, 1086741), (27, 724494), (54, 362247), (81, 241498), (162, 120749)]