21914648

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4397}}^1$

素因数の和:4499

約数の個数: 32

約数和(自身を含む): 47498400

約数和(自身を除く): 25583752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4397, 4984, 8794, 17588, 30779, 35176, 61558, 123116, 246232, 391333, 782666, 1565332, 2739331, 3130664, 5478662, 10957324, 21914648]

約数ペア:

[(1, 21914648), (2, 10957324), (4, 5478662), (7, 3130664), (8, 2739331), (14, 1565332), (28, 782666), (56, 391333), (89, 246232), (178, 123116), (356, 61558), (623, 35176), (712, 30779), (1246, 17588), (2492, 8794), (4397, 4984)]