21416795

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 28283904

約数和(自身を除く): 6867109

約数列:

[1, 5, 23, 43, 61, 71, 115, 215, 305, 355, 989, 1403, 1633, 2623, 3053, 4331, 4945, 7015, 8165, 13115, 15265, 21655, 60329, 70219, 99613, 186233, 301645, 351095, 498065, 931165, 4283359, 21416795]

約数ペア:

[(1, 21416795), (5, 4283359), (23, 931165), (43, 498065), (61, 351095), (71, 301645), (115, 186233), (215, 99613), (305, 70219), (355, 60329), (989, 21655), (1403, 15265), (1633, 13115), (2623, 8165), (3053, 7015), (4331, 4945)]