28072863

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 50459136

約数和(自身を除く): 22386273

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 151, 227, 273, 453, 681, 819, 1057, 1359, 1589, 1963, 2043, 2951, 3171, 4767, 5889, 8853, 9513, 13741, 14301, 17667, 20657, 26559, 34277, 41223, 61971, 102831, 123669, 185913, 239939, 308493, 445601, 719817, 1336803, 2159451, 3119207, 4010409, 9357621, 28072863]

約数ペア:

[(1, 28072863), (3, 9357621), (7, 4010409), (9, 3119207), (13, 2159451), (21, 1336803), (39, 719817), (63, 445601), (91, 308493), (117, 239939), (151, 185913), (227, 123669), (273, 102831), (453, 61971), (681, 41223), (819, 34277), (1057, 26559), (1359, 20657), (1589, 17667), (1963, 14301), (2043, 13741), (2951, 9513), (3171, 8853), (4767, 5889)]