21284170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125201}}^1$

素因数の和:125225

約数の個数: 16

約数和(自身を含む): 40565448

約数和(自身を除く): 19281278

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125201, 250402, 626005, 1252010, 2128417, 4256834, 10642085, 21284170]

約数ペア:

[(1, 21284170), (2, 10642085), (5, 4256834), (10, 2128417), (17, 1252010), (34, 626005), (85, 250402), (170, 125201)]