21685671

素因数分解:

$3^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 36979200

約数和(自身を除く): 15293529

約数列:

[1, 3, 7, 9, 21, 27, 63, 179, 189, 537, 641, 1253, 1611, 1923, 3759, 4487, 4833, 5769, 11277, 13461, 17307, 33831, 40383, 114739, 121149, 344217, 803173, 1032651, 2409519, 3097953, 7228557, 21685671]

約数ペア:

[(1, 21685671), (3, 7228557), (7, 3097953), (9, 2409519), (21, 1032651), (27, 803173), (63, 344217), (179, 121149), (189, 114739), (537, 40383), (641, 33831), (1253, 17307), (1611, 13461), (1923, 11277), (3759, 5769), (4487, 4833)]