19709466

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 47020800

約数和(自身を除く): 27311334

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 61, 98, 122, 147, 157, 183, 294, 314, 343, 366, 427, 471, 686, 854, 942, 1029, 1099, 1281, 2058, 2198, 2562, 2989, 3297, 5978, 6594, 7693, 8967, 9577, 15386, 17934, 19154, 20923, 23079, 28731, 41846, 46158, 53851, 57462, 62769, 67039, 107702, 125538, 134078, 161553, 201117, 323106, 402234, 469273, 938546, 1407819, 2815638, 3284911, 6569822, 9854733, 19709466]

約数ペア:

[(1, 19709466), (2, 9854733), (3, 6569822), (6, 3284911), (7, 2815638), (14, 1407819), (21, 938546), (42, 469273), (49, 402234), (61, 323106), (98, 201117), (122, 161553), (147, 134078), (157, 125538), (183, 107702), (294, 67039), (314, 62769), (343, 57462), (366, 53851), (427, 46158), (471, 41846), (686, 28731), (854, 23079), (942, 20923), (1029, 19154), (1099, 17934), (1281, 15386), (2058, 9577), (2198, 8967), (2562, 7693), (2989, 6594), (3297, 5978)]