21416248

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4297}}^1$

素因数の和:4399

約数の個数: 32

約数和(自身を含む): 46418400

約数和(自身を除く): 25002152

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4297, 4984, 8594, 17188, 30079, 34376, 60158, 120316, 240632, 382433, 764866, 1529732, 2677031, 3059464, 5354062, 10708124, 21416248]

約数ペア:

[(1, 21416248), (2, 10708124), (4, 5354062), (7, 3059464), (8, 2677031), (14, 1529732), (28, 764866), (56, 382433), (89, 240632), (178, 120316), (356, 60158), (623, 34376), (712, 30079), (1246, 17188), (2492, 8594), (4297, 4984)]