21749800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6397}}^1$

素因数の和:6430

約数の個数: 48

約数和(自身を含む): 53551260

約数和(自身を除く): 31801460

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 6397, 12794, 25588, 31985, 51176, 63970, 108749, 127940, 159925, 217498, 255880, 319850, 434996, 543745, 639700, 869992, 1087490, 1279400, 2174980, 2718725, 4349960, 5437450, 10874900, 21749800]

約数ペア:

[(1, 21749800), (2, 10874900), (4, 5437450), (5, 4349960), (8, 2718725), (10, 2174980), (17, 1279400), (20, 1087490), (25, 869992), (34, 639700), (40, 543745), (50, 434996), (68, 319850), (85, 255880), (100, 217498), (136, 159925), (170, 127940), (200, 108749), (340, 63970), (425, 51176), (680, 31985), (850, 25588), (1700, 12794), (3400, 6397)]