21000657676

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{1511}}^1\times {\mathrm{41863}}^1$

素因数の和:43461

約数の個数: 24

約数和(自身を含む): 37219440384

約数和(自身を除く): 16218782708

約数列:

[1, 2, 4, 83, 166, 332, 1511, 3022, 6044, 41863, 83726, 125413, 167452, 250826, 501652, 3474629, 6949258, 13898516, 63254993, 126509986, 253019972, 5250164419, 10500328838, 21000657676]

約数ペア:

[(1, 21000657676), (2, 10500328838), (4, 5250164419), (83, 253019972), (166, 126509986), (332, 63254993), (1511, 13898516), (3022, 6949258), (6044, 3474629), (41863, 501652), (83726, 250826), (125413, 167452)]