21031878

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71537}}^1$

素因数の和:71556

約数の個数: 24

約数和(自身を含む): 48931992

約数和(自身を除く): 27900114

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71537, 143074, 214611, 429222, 500759, 1001518, 1502277, 3004554, 3505313, 7010626, 10515939, 21031878]

約数ペア:

[(1, 21031878), (2, 10515939), (3, 7010626), (6, 3505313), (7, 3004554), (14, 1502277), (21, 1001518), (42, 500759), (49, 429222), (98, 214611), (147, 143074), (294, 71537)]