19395236

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20965084

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 89, 172, 178, 181, 301, 356, 362, 602, 623, 724, 1204, 1246, 1267, 2492, 2534, 3827, 5068, 7654, 7783, 15308, 15566, 16109, 26789, 31132, 32218, 53578, 54481, 64436, 107156, 108962, 112763, 217924, 225526, 451052, 692687, 1385374, 2770748, 4848809, 9697618, 19395236]

約数ペア:

[(1, 19395236), (2, 9697618), (4, 4848809), (7, 2770748), (14, 1385374), (28, 692687), (43, 451052), (86, 225526), (89, 217924), (172, 112763), (178, 108962), (181, 107156), (301, 64436), (356, 54481), (362, 53578), (602, 32218), (623, 31132), (724, 26789), (1204, 16109), (1246, 15566), (1267, 15308), (2492, 7783), (2534, 7654), (3827, 5068)]