19998738

素因数分解:

$2^1\times 3^4\times {\mathrm{123449}}^1$

素因数の和:123463

約数の個数: 20

約数和(自身を含む): 44812350

約数和(自身を除く): 24813612

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 123449, 246898, 370347, 740694, 1111041, 2222082, 3333123, 6666246, 9999369, 19998738]

約数ペア:

[(1, 19998738), (2, 9999369), (3, 6666246), (6, 3333123), (9, 2222082), (18, 1111041), (27, 740694), (54, 370347), (81, 246898), (162, 123449)]