21173772

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{383}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 52641792

約数和(自身を除く): 31468020

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 271, 383, 542, 766, 813, 1084, 1149, 1532, 1626, 2298, 3252, 4596, 4607, 6511, 9214, 13022, 13821, 18428, 19533, 26044, 27642, 39066, 55284, 78132, 103793, 207586, 311379, 415172, 622758, 1245516, 1764481, 3528962, 5293443, 7057924, 10586886, 21173772]

約数ペア:

[(1, 21173772), (2, 10586886), (3, 7057924), (4, 5293443), (6, 3528962), (12, 1764481), (17, 1245516), (34, 622758), (51, 415172), (68, 311379), (102, 207586), (204, 103793), (271, 78132), (383, 55284), (542, 39066), (766, 27642), (813, 26044), (1084, 19533), (1149, 18428), (1532, 13821), (1626, 13022), (2298, 9214), (3252, 6511), (4596, 4607)]