20810168

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4721}}^1$

素因数の和:4775

約数の個数: 32

約数和(自身を含む): 42498000

約数和(自身を除く): 21687832

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 76, 116, 152, 232, 551, 1102, 2204, 4408, 4721, 9442, 18884, 37768, 89699, 136909, 179398, 273818, 358796, 547636, 717592, 1095272, 2601271, 5202542, 10405084, 20810168]

約数ペア:

[(1, 20810168), (2, 10405084), (4, 5202542), (8, 2601271), (19, 1095272), (29, 717592), (38, 547636), (58, 358796), (76, 273818), (116, 179398), (152, 136909), (232, 89699), (551, 37768), (1102, 18884), (2204, 9442), (4408, 4721)]