20643056

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1237}}^1$

素因数の和:1401

約数の個数: 40

約数和(自身を含む): 46053600

約数和(自身を除く): 25410544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 1237, 2086, 2384, 2474, 4172, 4948, 8344, 8659, 9896, 16688, 17318, 19792, 34636, 69272, 138544, 184313, 368626, 737252, 1290191, 1474504, 2580382, 2949008, 5160764, 10321528, 20643056]

約数ペア:

[(1, 20643056), (2, 10321528), (4, 5160764), (7, 2949008), (8, 2580382), (14, 1474504), (16, 1290191), (28, 737252), (56, 368626), (112, 184313), (149, 138544), (298, 69272), (596, 34636), (1043, 19792), (1192, 17318), (1237, 16688), (2086, 9896), (2384, 8659), (2474, 8344), (4172, 4948)]