21000000610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110526319}}^1$

素因数の和:110526345

約数の個数: 16

約数和(自身を含む): 39789475200

約数和(自身を除く): 18789474590

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110526319, 221052638, 552631595, 1105263190, 2100000061, 4200000122, 10500000305, 21000000610]

約数ペア:

[(1, 21000000610), (2, 10500000305), (5, 4200000122), (10, 2100000061), (19, 1105263190), (38, 552631595), (95, 221052638), (190, 110526319)]