18807285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 36421632

約数和(自身を除く): 17614347

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 47, 103, 105, 111, 141, 185, 235, 259, 309, 329, 515, 555, 705, 721, 777, 987, 1295, 1545, 1645, 1739, 2163, 3605, 3811, 3885, 4841, 4935, 5217, 8695, 10815, 11433, 12173, 14523, 19055, 24205, 26085, 26677, 33887, 36519, 57165, 60865, 72615, 80031, 101661, 133385, 169435, 179117, 182595, 400155, 508305, 537351, 895585, 1253819, 2686755, 3761457, 6269095, 18807285]

約数ペア:

[(1, 18807285), (3, 6269095), (5, 3761457), (7, 2686755), (15, 1253819), (21, 895585), (35, 537351), (37, 508305), (47, 400155), (103, 182595), (105, 179117), (111, 169435), (141, 133385), (185, 101661), (235, 80031), (259, 72615), (309, 60865), (329, 57165), (515, 36519), (555, 33887), (705, 26677), (721, 26085), (777, 24205), (987, 19055), (1295, 14523), (1545, 12173), (1645, 11433), (1739, 10815), (2163, 8695), (3605, 5217), (3811, 4935), (3885, 4841)]