21688000

素因数分解:

$2^6\times 5^3\times {\mathrm{2711}}^1$

素因数の和:2738

約数の個数: 56

約数和(自身を含む): 53730144

約数和(自身を除く): 32042144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 2711, 4000, 5422, 8000, 10844, 13555, 21688, 27110, 43376, 54220, 67775, 86752, 108440, 135550, 173504, 216880, 271100, 338875, 433760, 542200, 677750, 867520, 1084400, 1355500, 2168800, 2711000, 4337600, 5422000, 10844000, 21688000]

約数ペア:

[(1, 21688000), (2, 10844000), (4, 5422000), (5, 4337600), (8, 2711000), (10, 2168800), (16, 1355500), (20, 1084400), (25, 867520), (32, 677750), (40, 542200), (50, 433760), (64, 338875), (80, 271100), (100, 216880), (125, 173504), (160, 135550), (200, 108440), (250, 86752), (320, 67775), (400, 54220), (500, 43376), (800, 27110), (1000, 21688), (1600, 13555), (2000, 10844), (2711, 8000), (4000, 5422)]