21799701

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 18036459

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 83, 99, 231, 249, 379, 581, 693, 747, 913, 1137, 1743, 2653, 2739, 3411, 4169, 5229, 6391, 7959, 8217, 12507, 19173, 23877, 29183, 31457, 37521, 57519, 87549, 94371, 220199, 262647, 283113, 346027, 660597, 1038081, 1981791, 2422189, 3114243, 7266567, 21799701]

約数ペア:

[(1, 21799701), (3, 7266567), (7, 3114243), (9, 2422189), (11, 1981791), (21, 1038081), (33, 660597), (63, 346027), (77, 283113), (83, 262647), (99, 220199), (231, 94371), (249, 87549), (379, 57519), (581, 37521), (693, 31457), (747, 29183), (913, 23877), (1137, 19173), (1743, 12507), (2653, 8217), (2739, 7959), (3411, 6391), (4169, 5229)]