21107142

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{2659}}^1$

素因数の和:2687

約数の個数: 60

約数和(自身を含む): 55038060

約数和(自身を除く): 33930918

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 81, 98, 126, 147, 162, 189, 294, 378, 441, 567, 882, 1134, 1323, 2646, 2659, 3969, 5318, 7938, 7977, 15954, 18613, 23931, 37226, 47862, 55839, 71793, 111678, 130291, 143586, 167517, 215379, 260582, 335034, 390873, 430758, 502551, 781746, 1005102, 1172619, 1507653, 2345238, 3015306, 3517857, 7035714, 10553571, 21107142]

約数ペア:

[(1, 21107142), (2, 10553571), (3, 7035714), (6, 3517857), (7, 3015306), (9, 2345238), (14, 1507653), (18, 1172619), (21, 1005102), (27, 781746), (42, 502551), (49, 430758), (54, 390873), (63, 335034), (81, 260582), (98, 215379), (126, 167517), (147, 143586), (162, 130291), (189, 111678), (294, 71793), (378, 55839), (441, 47862), (567, 37226), (882, 23931), (1134, 18613), (1323, 15954), (2646, 7977), (2659, 7938), (3969, 5318)]