161961201

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 56

約数和(自身を含む): 258122880

約数和(自身を除く): 96161679

約数列:

[1, 3, 9, 27, 29, 47, 81, 87, 141, 163, 243, 261, 423, 489, 729, 783, 1269, 1363, 1467, 2349, 3807, 4089, 4401, 4727, 7047, 7661, 11421, 12267, 13203, 14181, 21141, 22983, 34263, 36801, 39609, 42543, 68949, 110403, 118827, 127629, 206847, 222169, 331209, 382887, 620541, 666507, 993627, 1148661, 1861623, 1999521, 3445983, 5584869, 5998563, 17995689, 53987067, 161961201]

約数ペア:

[(1, 161961201), (3, 53987067), (9, 17995689), (27, 5998563), (29, 5584869), (47, 3445983), (81, 1999521), (87, 1861623), (141, 1148661), (163, 993627), (243, 666507), (261, 620541), (423, 382887), (489, 331209), (729, 222169), (783, 206847), (1269, 127629), (1363, 118827), (1467, 110403), (2349, 68949), (3807, 42543), (4089, 39609), (4401, 36801), (4727, 34263), (7047, 22983), (7661, 21141), (11421, 14181), (12267, 13203)]