20170981665

素因数分解:

$3^6\times 5^1\times {\mathrm{337}}^1\times {\mathrm{16421}}^1$

素因数の和:16781

約数の個数: 56

約数和(自身を含む): 36401070888

約数和(自身を除く): 16230089223

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 337, 405, 729, 1011, 1215, 1685, 3033, 3645, 5055, 9099, 15165, 16421, 27297, 45495, 49263, 81891, 82105, 136485, 147789, 245673, 246315, 409455, 443367, 738945, 1228365, 1330101, 2216835, 3990303, 5533877, 6650505, 11970909, 16601631, 19951515, 27669385, 49804893, 59854545, 83008155, 149414679, 249024465, 448244037, 747073395, 1344732111, 2241220185, 4034196333, 6723660555, 20170981665]

約数ペア:

[(1, 20170981665), (3, 6723660555), (5, 4034196333), (9, 2241220185), (15, 1344732111), (27, 747073395), (45, 448244037), (81, 249024465), (135, 149414679), (243, 83008155), (337, 59854545), (405, 49804893), (729, 27669385), (1011, 19951515), (1215, 16601631), (1685, 11970909), (3033, 6650505), (3645, 5533877), (5055, 3990303), (9099, 2216835), (15165, 1330101), (16421, 1228365), (27297, 738945), (45495, 443367), (49263, 409455), (81891, 246315), (82105, 245673), (136485, 147789)]