21193116

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1607}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 56910336

約数和(自身を除く): 35717220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 157, 314, 471, 628, 942, 1099, 1607, 1884, 2198, 3214, 3297, 4396, 4821, 6428, 6594, 9642, 11249, 13188, 19284, 22498, 33747, 44996, 67494, 134988, 252299, 504598, 756897, 1009196, 1513794, 1766093, 3027588, 3532186, 5298279, 7064372, 10596558, 21193116]

約数ペア:

[(1, 21193116), (2, 10596558), (3, 7064372), (4, 5298279), (6, 3532186), (7, 3027588), (12, 1766093), (14, 1513794), (21, 1009196), (28, 756897), (42, 504598), (84, 252299), (157, 134988), (314, 67494), (471, 44996), (628, 33747), (942, 22498), (1099, 19284), (1607, 13188), (1884, 11249), (2198, 9642), (3214, 6594), (3297, 6428), (4396, 4821)]