21435006980

素因数分解:

$2^2\times 5^1\times {\mathrm{25951}}^1\times {\mathrm{41299}}^1$

素因数の和:67259

約数の個数: 24

約数和(自身を含む): 45016339200

約数和(自身を除く): 23581332220

約数列:

[1, 2, 4, 5, 10, 20, 25951, 41299, 51902, 82598, 103804, 129755, 165196, 206495, 259510, 412990, 519020, 825980, 1071750349, 2143500698, 4287001396, 5358751745, 10717503490, 21435006980]

約数ペア:

[(1, 21435006980), (2, 10717503490), (4, 5358751745), (5, 4287001396), (10, 2143500698), (20, 1071750349), (25951, 825980), (41299, 519020), (51902, 412990), (82598, 259510), (103804, 206495), (129755, 165196)]