21148624

素因数分解:

$2^4\times 7^1\times {\mathrm{188827}}^1$

素因数の和:188842

約数の個数: 20

約数和(自身を含む): 46829344

約数和(自身を除く): 25680720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188827, 377654, 755308, 1321789, 1510616, 2643578, 3021232, 5287156, 10574312, 21148624]

約数ペア:

[(1, 21148624), (2, 10574312), (4, 5287156), (7, 3021232), (8, 2643578), (14, 1510616), (16, 1321789), (28, 755308), (56, 377654), (112, 188827)]