16821342

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 37834368

約数和(自身を除く): 21013026

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 103, 129, 206, 211, 258, 309, 387, 422, 618, 633, 774, 927, 1266, 1854, 1899, 3798, 4429, 8858, 9073, 13287, 18146, 21733, 26574, 27219, 39861, 43466, 54438, 65199, 79722, 81657, 130398, 163314, 195597, 391194, 934519, 1869038, 2803557, 5607114, 8410671, 16821342]

約数ペア:

[(1, 16821342), (2, 8410671), (3, 5607114), (6, 2803557), (9, 1869038), (18, 934519), (43, 391194), (86, 195597), (103, 163314), (129, 130398), (206, 81657), (211, 79722), (258, 65199), (309, 54438), (387, 43466), (422, 39861), (618, 27219), (633, 26574), (774, 21733), (927, 18146), (1266, 13287), (1854, 9073), (1899, 8858), (3798, 4429)]