21000317769

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{101051}}^1$

素因数の和:101282

約数の個数: 32

約数和(自身を含む): 32013273600

約数和(自身を除く): 11012955831

約数列:

[1, 3, 9, 27, 43, 129, 179, 387, 537, 1161, 1611, 4833, 7697, 23091, 69273, 101051, 207819, 303153, 909459, 2728377, 4345193, 13035579, 18088129, 39106737, 54264387, 117320211, 162793161, 488379483, 777789547, 2333368641, 7000105923, 21000317769]

約数ペア:

[(1, 21000317769), (3, 7000105923), (9, 2333368641), (27, 777789547), (43, 488379483), (129, 162793161), (179, 117320211), (387, 54264387), (537, 39106737), (1161, 18088129), (1611, 13035579), (4833, 4345193), (7697, 2728377), (23091, 909459), (69273, 303153), (101051, 207819)]