21195770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3041}}^1$

素因数の和:3106

約数の個数: 32

約数和(自身を含む): 41395536

約数和(自身を除く): 20199766

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 3041, 3485, 6082, 6970, 15205, 30410, 51697, 103394, 124681, 249362, 258485, 516970, 623405, 1246810, 2119577, 4239154, 10597885, 21195770]

約数ペア:

[(1, 21195770), (2, 10597885), (5, 4239154), (10, 2119577), (17, 1246810), (34, 623405), (41, 516970), (82, 258485), (85, 249362), (170, 124681), (205, 103394), (410, 51697), (697, 30410), (1394, 15205), (3041, 6970), (3485, 6082)]