21972496

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15091}}^1$

素因数の和:15119

約数の個数: 40

約数和(自身を含む): 52399424

約数和(自身を除く): 30426928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 15091, 30182, 60364, 105637, 120728, 196183, 211274, 241456, 392366, 422548, 784732, 845096, 1373281, 1569464, 1690192, 2746562, 3138928, 5493124, 10986248, 21972496]

約数ペア:

[(1, 21972496), (2, 10986248), (4, 5493124), (7, 3138928), (8, 2746562), (13, 1690192), (14, 1569464), (16, 1373281), (26, 845096), (28, 784732), (52, 422548), (56, 392366), (91, 241456), (104, 211274), (112, 196183), (182, 120728), (208, 105637), (364, 60364), (728, 30182), (1456, 15091)]