21229900

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{4517}}^1$

素因数の和:4578

約数の個数: 36

約数和(自身を含む): 47059488

約数和(自身を除く): 25829588

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 470, 940, 1175, 2350, 4517, 4700, 9034, 18068, 22585, 45170, 90340, 112925, 212299, 225850, 424598, 451700, 849196, 1061495, 2122990, 4245980, 5307475, 10614950, 21229900]

約数ペア:

[(1, 21229900), (2, 10614950), (4, 5307475), (5, 4245980), (10, 2122990), (20, 1061495), (25, 849196), (47, 451700), (50, 424598), (94, 225850), (100, 212299), (188, 112925), (235, 90340), (470, 45170), (940, 22585), (1175, 18068), (2350, 9034), (4517, 4700)]