16721523

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1201}}^1$

素因数の和:1244

約数の個数: 48

約数和(自身を含む): 31502016

約数和(自身を除く): 14780493

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1201, 1547, 1989, 3603, 4641, 8407, 10809, 13923, 15613, 20417, 25221, 46839, 61251, 75663, 109291, 140517, 142919, 183753, 265421, 327873, 428757, 796263, 983619, 1286271, 1857947, 2388789, 5573841, 16721523]

約数ペア:

[(1, 16721523), (3, 5573841), (7, 2388789), (9, 1857947), (13, 1286271), (17, 983619), (21, 796263), (39, 428757), (51, 327873), (63, 265421), (91, 183753), (117, 142919), (119, 140517), (153, 109291), (221, 75663), (273, 61251), (357, 46839), (663, 25221), (819, 20417), (1071, 15613), (1201, 13923), (1547, 10809), (1989, 8407), (3603, 4641)]