19718695

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{569}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 4905305

約数列:

[1, 5, 29, 145, 239, 569, 1195, 2845, 6931, 16501, 34655, 82505, 135991, 679955, 3943739, 19718695]

約数ペア:

[(1, 19718695), (5, 3943739), (29, 679955), (145, 135991), (239, 82505), (569, 34655), (1195, 16501), (2845, 6931)]