21002695

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31583}}^1$

素因数の和:31614

約数の個数: 16

約数和(自身を含む): 30320640

約数和(自身を除く): 9317945

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31583, 157915, 221081, 600077, 1105405, 3000385, 4200539, 21002695]

約数ペア:

[(1, 21002695), (5, 4200539), (7, 3000385), (19, 1105405), (35, 600077), (95, 221081), (133, 157915), (665, 31583)]