21105832

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{643}}^1$

素因数の和:1033

約数の個数: 32

約数和(自身を含む): 43354080

約数和(自身を除く): 22248248

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 373, 643, 746, 1286, 1492, 2572, 2984, 4103, 5144, 7073, 8206, 14146, 16412, 28292, 32824, 56584, 239839, 479678, 959356, 1918712, 2638229, 5276458, 10552916, 21105832]

約数ペア:

[(1, 21105832), (2, 10552916), (4, 5276458), (8, 2638229), (11, 1918712), (22, 959356), (44, 479678), (88, 239839), (373, 56584), (643, 32824), (746, 28292), (1286, 16412), (1492, 14146), (2572, 8206), (2984, 7073), (4103, 5144)]