21687190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{863}}^1$

素因数の和:1236

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 23102570

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 359, 718, 863, 1726, 1795, 2513, 3590, 4315, 5026, 6041, 8630, 12082, 12565, 25130, 30205, 60410, 309817, 619634, 1549085, 2168719, 3098170, 4337438, 10843595, 21687190]

約数ペア:

[(1, 21687190), (2, 10843595), (5, 4337438), (7, 3098170), (10, 2168719), (14, 1549085), (35, 619634), (70, 309817), (359, 60410), (718, 30205), (863, 25130), (1726, 12565), (1795, 12082), (2513, 8630), (3590, 6041), (4315, 5026)]