21283796

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 20628844

約数列:

[1, 2, 4, 17, 29, 34, 43, 58, 68, 86, 116, 172, 251, 493, 502, 731, 986, 1004, 1247, 1462, 1972, 2494, 2924, 4267, 4988, 7279, 8534, 10793, 14558, 17068, 21199, 21586, 29116, 42398, 43172, 84796, 123743, 183481, 247486, 312997, 366962, 494972, 625994, 733924, 1251988, 5320949, 10641898, 21283796]

約数ペア:

[(1, 21283796), (2, 10641898), (4, 5320949), (17, 1251988), (29, 733924), (34, 625994), (43, 494972), (58, 366962), (68, 312997), (86, 247486), (116, 183481), (172, 123743), (251, 84796), (493, 43172), (502, 42398), (731, 29116), (986, 21586), (1004, 21199), (1247, 17068), (1462, 14558), (1972, 10793), (2494, 8534), (2924, 7279), (4267, 4988)]