21135942

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2687}}^1$

素因数の和:2737

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 29183418

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 114, 138, 171, 207, 342, 414, 437, 874, 1311, 2622, 2687, 3933, 5374, 7866, 8061, 16122, 24183, 48366, 51053, 61801, 102106, 123602, 153159, 185403, 306318, 370806, 459477, 556209, 918954, 1112418, 1174219, 2348438, 3522657, 7045314, 10567971, 21135942]

約数ペア:

[(1, 21135942), (2, 10567971), (3, 7045314), (6, 3522657), (9, 2348438), (18, 1174219), (19, 1112418), (23, 918954), (38, 556209), (46, 459477), (57, 370806), (69, 306318), (114, 185403), (138, 153159), (171, 123602), (207, 102106), (342, 61801), (414, 51053), (437, 48366), (874, 24183), (1311, 16122), (2622, 8061), (2687, 7866), (3933, 5374)]