18557642

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 13842358

約数列:

[1, 2, 17, 19, 23, 34, 38, 46, 323, 391, 437, 646, 782, 874, 1249, 2498, 7429, 14858, 21233, 23731, 28727, 42466, 47462, 57454, 403427, 488359, 545813, 806854, 976718, 1091626, 9278821, 18557642]

約数ペア:

[(1, 18557642), (2, 9278821), (17, 1091626), (19, 976718), (23, 806854), (34, 545813), (38, 488359), (46, 403427), (323, 57454), (391, 47462), (437, 42466), (646, 28727), (782, 23731), (874, 21233), (1249, 14858), (2498, 7429)]