18021788

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 34836480

約数和(自身を除く): 16814692

約数列:

[1, 2, 4, 23, 31, 46, 62, 71, 89, 92, 124, 142, 178, 284, 356, 713, 1426, 1633, 2047, 2201, 2759, 2852, 3266, 4094, 4402, 5518, 6319, 6532, 8188, 8804, 11036, 12638, 25276, 50623, 63457, 101246, 126914, 145337, 195889, 202492, 253828, 290674, 391778, 581348, 783556, 4505447, 9010894, 18021788]

約数ペア:

[(1, 18021788), (2, 9010894), (4, 4505447), (23, 783556), (31, 581348), (46, 391778), (62, 290674), (71, 253828), (89, 202492), (92, 195889), (124, 145337), (142, 126914), (178, 101246), (284, 63457), (356, 50623), (713, 25276), (1426, 12638), (1633, 11036), (2047, 8804), (2201, 8188), (2759, 6532), (2852, 6319), (3266, 5518), (4094, 4402)]