21214400

素因数分解:

$2^6\times 5^2\times {\mathrm{13259}}^1$

素因数の和:13281

約数の個数: 42

約数和(自身を含む): 52204620

約数和(自身を除く): 30990220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13259, 26518, 53036, 66295, 106072, 132590, 212144, 265180, 331475, 424288, 530360, 662950, 848576, 1060720, 1325900, 2121440, 2651800, 4242880, 5303600, 10607200, 21214400]

約数ペア:

[(1, 21214400), (2, 10607200), (4, 5303600), (5, 4242880), (8, 2651800), (10, 2121440), (16, 1325900), (20, 1060720), (25, 848576), (32, 662950), (40, 530360), (50, 424288), (64, 331475), (80, 265180), (100, 212144), (160, 132590), (200, 106072), (320, 66295), (400, 53036), (800, 26518), (1600, 13259)]