19893965

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1901}}^1$

素因数の和:1949

約数の個数: 32

約数和(自身を含む): 30675456

約数和(自身を除く): 10781491

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 1901, 2093, 9505, 10465, 13307, 24713, 43723, 66535, 123565, 172991, 218615, 306061, 568399, 864955, 1530305, 2841995, 3978793, 19893965]

約数ペア:

[(1, 19893965), (5, 3978793), (7, 2841995), (13, 1530305), (23, 864955), (35, 568399), (65, 306061), (91, 218615), (115, 172991), (161, 123565), (299, 66535), (455, 43723), (805, 24713), (1495, 13307), (1901, 10465), (2093, 9505)]