21986608

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1801}}^1$

素因数の和:1925

約数の個数: 40

約数和(自身を含む): 49158560

約数和(自身を除く): 27171952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 1801, 3052, 3602, 6104, 7204, 12208, 12607, 14408, 25214, 28816, 50428, 100856, 196309, 201712, 392618, 785236, 1374163, 1570472, 2748326, 3140944, 5496652, 10993304, 21986608]

約数ペア:

[(1, 21986608), (2, 10993304), (4, 5496652), (7, 3140944), (8, 2748326), (14, 1570472), (16, 1374163), (28, 785236), (56, 392618), (109, 201712), (112, 196309), (218, 100856), (436, 50428), (763, 28816), (872, 25214), (1526, 14408), (1744, 12607), (1801, 12208), (3052, 7204), (3602, 6104)]