19447696

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1229}}^1$

素因数の和:1303

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 20817584

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1229, 1978, 2458, 3956, 4916, 7912, 9832, 15824, 19664, 28267, 52847, 56534, 105694, 113068, 211388, 226136, 422776, 452272, 845552, 1215481, 2430962, 4861924, 9723848, 19447696]

約数ペア:

[(1, 19447696), (2, 9723848), (4, 4861924), (8, 2430962), (16, 1215481), (23, 845552), (43, 452272), (46, 422776), (86, 226136), (92, 211388), (172, 113068), (184, 105694), (344, 56534), (368, 52847), (688, 28267), (989, 19664), (1229, 15824), (1978, 9832), (2458, 7912), (3956, 4916)]