21214165

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 32479488

約数和(自身を除く): 11265323

約数列:

[1, 5, 7, 19, 23, 35, 73, 95, 115, 133, 161, 361, 365, 437, 511, 665, 805, 1387, 1679, 1805, 2185, 2527, 2555, 3059, 6935, 8303, 8395, 9709, 11753, 12635, 15295, 26353, 31901, 41515, 48545, 58121, 58765, 131765, 159505, 184471, 223307, 290605, 606119, 922355, 1116535, 3030595, 4242833, 21214165]

約数ペア:

[(1, 21214165), (5, 4242833), (7, 3030595), (19, 1116535), (23, 922355), (35, 606119), (73, 290605), (95, 223307), (115, 184471), (133, 159505), (161, 131765), (361, 58765), (365, 58121), (437, 48545), (511, 41515), (665, 31901), (805, 26353), (1387, 15295), (1679, 12635), (1805, 11753), (2185, 9709), (2527, 8395), (2555, 8303), (3059, 6935)]