18681597

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 31711680

約数和(自身を除く): 13030083

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 241, 243, 261, 297, 319, 723, 783, 891, 957, 2169, 2349, 2651, 2673, 2871, 6507, 6989, 7047, 7953, 8613, 19521, 20967, 23859, 25839, 58563, 62901, 71577, 76879, 77517, 188703, 214731, 230637, 566109, 644193, 691911, 1698327, 2075733, 6227199, 18681597]

約数ペア:

[(1, 18681597), (3, 6227199), (9, 2075733), (11, 1698327), (27, 691911), (29, 644193), (33, 566109), (81, 230637), (87, 214731), (99, 188703), (241, 77517), (243, 76879), (261, 71577), (297, 62901), (319, 58563), (723, 25839), (783, 23859), (891, 20967), (957, 19521), (2169, 8613), (2349, 7953), (2651, 7047), (2673, 6989), (2871, 6507)]