21353560

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1153}}^1$

素因数の和:1627

約数の個数: 32

約数和(自身を含む): 48191040

約数和(自身を除く): 26837480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1153, 1852, 2306, 2315, 3704, 4612, 4630, 5765, 9224, 9260, 11530, 18520, 23060, 46120, 533839, 1067678, 2135356, 2669195, 4270712, 5338390, 10676780, 21353560]

約数ペア:

[(1, 21353560), (2, 10676780), (4, 5338390), (5, 4270712), (8, 2669195), (10, 2135356), (20, 1067678), (40, 533839), (463, 46120), (926, 23060), (1153, 18520), (1852, 11530), (2306, 9260), (2315, 9224), (3704, 5765), (4612, 4630)]