19861328

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1741}}^1$

素因数の和:1803

約数の個数: 40

約数和(自身を含む): 41473536

約数和(自身を除く): 21612208

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 92, 124, 184, 248, 368, 496, 713, 1426, 1741, 2852, 3482, 5704, 6964, 11408, 13928, 27856, 40043, 53971, 80086, 107942, 160172, 215884, 320344, 431768, 640688, 863536, 1241333, 2482666, 4965332, 9930664, 19861328]

約数ペア:

[(1, 19861328), (2, 9930664), (4, 4965332), (8, 2482666), (16, 1241333), (23, 863536), (31, 640688), (46, 431768), (62, 320344), (92, 215884), (124, 160172), (184, 107942), (248, 80086), (368, 53971), (496, 40043), (713, 27856), (1426, 13928), (1741, 11408), (2852, 6964), (3482, 5704)]