21144906

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1675

約数の個数: 48

約数和(自身を含む): 49667904

約数和(自身を除く): 28522998

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 43, 51, 86, 102, 129, 153, 258, 306, 387, 731, 774, 1462, 1607, 2193, 3214, 4386, 4821, 6579, 9642, 13158, 14463, 27319, 28926, 54638, 69101, 81957, 138202, 163914, 207303, 245871, 414606, 491742, 621909, 1174717, 1243818, 2349434, 3524151, 7048302, 10572453, 21144906]

約数ペア:

[(1, 21144906), (2, 10572453), (3, 7048302), (6, 3524151), (9, 2349434), (17, 1243818), (18, 1174717), (34, 621909), (43, 491742), (51, 414606), (86, 245871), (102, 207303), (129, 163914), (153, 138202), (258, 81957), (306, 69101), (387, 54638), (731, 28926), (774, 27319), (1462, 14463), (1607, 13158), (2193, 9642), (3214, 6579), (4386, 4821)]