21402645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6827}}^1$

素因数の和:6865

約数の個数: 32

約数和(自身を含む): 39329280

約数和(自身を除く): 17926635

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6827, 20481, 34135, 75097, 102405, 129713, 225291, 375485, 389139, 648565, 1126455, 1426843, 1945695, 4280529, 7134215, 21402645]

約数ペア:

[(1, 21402645), (3, 7134215), (5, 4280529), (11, 1945695), (15, 1426843), (19, 1126455), (33, 648565), (55, 389139), (57, 375485), (95, 225291), (165, 129713), (209, 102405), (285, 75097), (627, 34135), (1045, 20481), (3135, 6827)]