21095060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2843}}^1$

素因数の和:2912

約数の個数: 48

約数和(自身を含む): 51601536

約数和(自身を除く): 30506476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2843, 3710, 5686, 7420, 11372, 14215, 19901, 28430, 39802, 56860, 79604, 99505, 150679, 199010, 301358, 398020, 602716, 753395, 1054753, 1506790, 2109506, 3013580, 4219012, 5273765, 10547530, 21095060]

約数ペア:

[(1, 21095060), (2, 10547530), (4, 5273765), (5, 4219012), (7, 3013580), (10, 2109506), (14, 1506790), (20, 1054753), (28, 753395), (35, 602716), (53, 398020), (70, 301358), (106, 199010), (140, 150679), (212, 99505), (265, 79604), (371, 56860), (530, 39802), (742, 28430), (1060, 19901), (1484, 14215), (1855, 11372), (2843, 7420), (3710, 5686)]