12739881

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 21390336

約数和(自身を除く): 8650455

約数列:

[1, 3, 7, 11, 21, 33, 77, 131, 231, 393, 421, 917, 1263, 1441, 2751, 2947, 4323, 4631, 8841, 10087, 13893, 30261, 32417, 55151, 97251, 165453, 386057, 606661, 1158171, 1819983, 4246627, 12739881]

約数ペア:

[(1, 12739881), (3, 4246627), (7, 1819983), (11, 1158171), (21, 606661), (33, 386057), (77, 165453), (131, 97251), (231, 55151), (393, 32417), (421, 30261), (917, 13893), (1263, 10087), (1441, 8841), (2751, 4631), (2947, 4323)]