19816378

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7433}}^1$

素因数の和:7509

約数の個数: 16

約数和(自身を含む): 31401216

約数和(自身を除く): 11584838

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7433, 14866, 230423, 319619, 460846, 639238, 9908189, 19816378]

約数ペア:

[(1, 19816378), (2, 9908189), (31, 639238), (43, 460846), (62, 319619), (86, 230423), (1333, 14866), (2666, 7433)]