21889400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8419}}^1$

素因数の和:8448

約数の個数: 48

約数和(自身を含む): 54814200

約数和(自身を除く): 32924800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8419, 16838, 33676, 42095, 67352, 84190, 109447, 168380, 210475, 218894, 336760, 420950, 437788, 547235, 841900, 875576, 1094470, 1683800, 2188940, 2736175, 4377880, 5472350, 10944700, 21889400]

約数ペア:

[(1, 21889400), (2, 10944700), (4, 5472350), (5, 4377880), (8, 2736175), (10, 2188940), (13, 1683800), (20, 1094470), (25, 875576), (26, 841900), (40, 547235), (50, 437788), (52, 420950), (65, 336760), (100, 218894), (104, 210475), (130, 168380), (200, 109447), (260, 84190), (325, 67352), (520, 42095), (650, 33676), (1300, 16838), (2600, 8419)]