13199823

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 23901696

約数和(自身を除く): 10701873

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 71, 91, 117, 213, 227, 273, 497, 639, 681, 819, 923, 1491, 1589, 2043, 2769, 2951, 4473, 4767, 6461, 8307, 8853, 14301, 16117, 19383, 20657, 26559, 48351, 58149, 61971, 112819, 145053, 185913, 209521, 338457, 628563, 1015371, 1466647, 1885689, 4399941, 13199823]

約数ペア:

[(1, 13199823), (3, 4399941), (7, 1885689), (9, 1466647), (13, 1015371), (21, 628563), (39, 338457), (63, 209521), (71, 185913), (91, 145053), (117, 112819), (213, 61971), (227, 58149), (273, 48351), (497, 26559), (639, 20657), (681, 19383), (819, 16117), (923, 14301), (1491, 8853), (1589, 8307), (2043, 6461), (2769, 4767), (2951, 4473)]