21202956

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13697}}^1$

素因数の和:13750

約数の個数: 36

約数和(自身を含む): 54846792

約数和(自身を除く): 33643836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13697, 27394, 41091, 54788, 82182, 123273, 164364, 246546, 493092, 588971, 1177942, 1766913, 2355884, 3533826, 5300739, 7067652, 10601478, 21202956]

約数ペア:

[(1, 21202956), (2, 10601478), (3, 7067652), (4, 5300739), (6, 3533826), (9, 2355884), (12, 1766913), (18, 1177942), (36, 588971), (43, 493092), (86, 246546), (129, 164364), (172, 123273), (258, 82182), (387, 54788), (516, 41091), (774, 27394), (1548, 13697)]