20847712

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2017}}^1$

素因数の和:2063

約数の個数: 48

約数和(自身を含む): 45768240

約数和(自身を除く): 24920528

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2017, 2584, 4034, 5168, 8068, 10336, 16136, 32272, 34289, 38323, 64544, 68578, 76646, 137156, 153292, 274312, 306584, 548624, 613168, 651491, 1097248, 1226336, 1302982, 2605964, 5211928, 10423856, 20847712]

約数ペア:

[(1, 20847712), (2, 10423856), (4, 5211928), (8, 2605964), (16, 1302982), (17, 1226336), (19, 1097248), (32, 651491), (34, 613168), (38, 548624), (68, 306584), (76, 274312), (136, 153292), (152, 137156), (272, 76646), (304, 68578), (323, 64544), (544, 38323), (608, 34289), (646, 32272), (1292, 16136), (2017, 10336), (2584, 8068), (4034, 5168)]