19845826

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 21957950

約数列:

[1, 2, 7, 11, 13, 14, 22, 23, 26, 46, 77, 91, 143, 154, 161, 182, 253, 286, 299, 322, 431, 506, 598, 862, 1001, 1771, 2002, 2093, 3017, 3289, 3542, 4186, 4741, 5603, 6034, 6578, 9482, 9913, 11206, 19826, 23023, 33187, 39221, 46046, 61633, 66374, 69391, 78442, 109043, 123266, 128869, 138782, 218086, 257738, 431431, 763301, 862862, 902083, 1417559, 1526602, 1804166, 2835118, 9922913, 19845826]

約数ペア:

[(1, 19845826), (2, 9922913), (7, 2835118), (11, 1804166), (13, 1526602), (14, 1417559), (22, 902083), (23, 862862), (26, 763301), (46, 431431), (77, 257738), (91, 218086), (143, 138782), (154, 128869), (161, 123266), (182, 109043), (253, 78442), (286, 69391), (299, 66374), (322, 61633), (431, 46046), (506, 39221), (598, 33187), (862, 23023), (1001, 19826), (1771, 11206), (2002, 9913), (2093, 9482), (3017, 6578), (3289, 6034), (3542, 5603), (4186, 4741)]