20778516

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{383}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 57867264

約数和(自身を除く): 37088748

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 137, 198, 274, 383, 396, 411, 548, 766, 822, 1149, 1233, 1507, 1532, 1644, 2298, 2466, 3014, 3447, 4213, 4521, 4596, 4932, 6028, 6894, 8426, 9042, 12639, 13563, 13788, 16852, 18084, 25278, 27126, 37917, 50556, 52471, 54252, 75834, 104942, 151668, 157413, 209884, 314826, 472239, 577181, 629652, 944478, 1154362, 1731543, 1888956, 2308724, 3463086, 5194629, 6926172, 10389258, 20778516]

約数ペア:

[(1, 20778516), (2, 10389258), (3, 6926172), (4, 5194629), (6, 3463086), (9, 2308724), (11, 1888956), (12, 1731543), (18, 1154362), (22, 944478), (33, 629652), (36, 577181), (44, 472239), (66, 314826), (99, 209884), (132, 157413), (137, 151668), (198, 104942), (274, 75834), (383, 54252), (396, 52471), (411, 50556), (548, 37917), (766, 27126), (822, 25278), (1149, 18084), (1233, 16852), (1507, 13788), (1532, 13563), (1644, 12639), (2298, 9042), (2466, 8426), (3014, 6894), (3447, 6028), (4213, 4932), (4521, 4596)]