20843287815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{54973}}^1$

素因数の和:55168

約数の個数: 64

約数和(自身を含む): 40024590336

約数和(自身を除く): 19181302521

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 157, 161, 345, 471, 483, 785, 805, 1099, 2355, 2415, 3297, 3611, 5495, 10833, 16485, 18055, 25277, 54165, 54973, 75831, 126385, 164919, 274865, 379155, 384811, 824595, 1154433, 1264379, 1924055, 3793137, 5772165, 6321895, 8630761, 8850653, 18965685, 25892283, 26551959, 43153805, 44253265, 60415327, 129461415, 132759795, 181245981, 198507503, 302076635, 595522509, 906229905, 992537515, 1389552521, 2977612545, 4168657563, 6947762605, 20843287815]

約数ペア:

[(1, 20843287815), (3, 6947762605), (5, 4168657563), (7, 2977612545), (15, 1389552521), (21, 992537515), (23, 906229905), (35, 595522509), (69, 302076635), (105, 198507503), (115, 181245981), (157, 132759795), (161, 129461415), (345, 60415327), (471, 44253265), (483, 43153805), (785, 26551959), (805, 25892283), (1099, 18965685), (2355, 8850653), (2415, 8630761), (3297, 6321895), (3611, 5772165), (5495, 3793137), (10833, 1924055), (16485, 1264379), (18055, 1154433), (25277, 824595), (54165, 384811), (54973, 379155), (75831, 274865), (126385, 164919)]