20139045381

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{457}}^1\times {\mathrm{4139}}^1$

素因数の和:4635

約数の個数: 72

約数和(自身を含む): 36086955840

約数和(自身を除く): 15947910459

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 457, 507, 819, 1183, 1371, 1521, 3199, 3549, 4113, 4139, 5941, 9597, 10647, 12417, 17823, 28791, 28973, 37251, 41587, 53469, 53807, 77233, 86919, 124761, 161421, 231699, 260757, 374283, 376649, 484263, 540631, 695097, 699491, 1129947, 1621893, 1891523, 2098473, 3389841, 4865679, 4896437, 5674569, 6295419, 13240661, 14689311, 17023707, 24589799, 39721983, 44067933, 73769397, 119165949, 172128593, 221308191, 319667387, 516385779, 959002161, 1549157337, 2237671709, 2877006483, 6713015127, 20139045381]

約数ペア:

[(1, 20139045381), (3, 6713015127), (7, 2877006483), (9, 2237671709), (13, 1549157337), (21, 959002161), (39, 516385779), (63, 319667387), (91, 221308191), (117, 172128593), (169, 119165949), (273, 73769397), (457, 44067933), (507, 39721983), (819, 24589799), (1183, 17023707), (1371, 14689311), (1521, 13240661), (3199, 6295419), (3549, 5674569), (4113, 4896437), (4139, 4865679), (5941, 3389841), (9597, 2098473), (10647, 1891523), (12417, 1621893), (17823, 1129947), (28791, 699491), (28973, 695097), (37251, 540631), (41587, 484263), (53469, 376649), (53807, 374283), (77233, 260757), (86919, 231699), (124761, 161421)]