20994037841612

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{8111}}^1\times {\mathrm{40823}}^1$

素因数の和:49091

約数の個数: 72

約数和(自身を含む): 40697441680896

約数和(自身を除く): 19703403839284

約数列:

[1, 2, 4, 11, 22, 44, 121, 131, 242, 262, 484, 524, 1441, 2882, 5764, 8111, 15851, 16222, 31702, 32444, 40823, 63404, 81646, 89221, 163292, 178442, 356884, 449053, 898106, 981431, 1062541, 1796212, 1962862, 2125082, 3925724, 4250164, 4939583, 5347813, 9879166, 10695626, 11687951, 19758332, 21391252, 23375902, 46751804, 58825943, 117651886, 128567461, 235303772, 257134922, 331115353, 514269844, 647085373, 662230706, 1294170746, 1324461412, 2588341492, 3642268883, 7284537766, 14569075532, 40064957713, 43376111243, 80129915426, 86752222486, 160259830852, 173504444972, 477137223673, 954274447346, 1908548894692, 5248509460403, 10497018920806, 20994037841612]

約数ペア:

[(1, 20994037841612), (2, 10497018920806), (4, 5248509460403), (11, 1908548894692), (22, 954274447346), (44, 477137223673), (121, 173504444972), (131, 160259830852), (242, 86752222486), (262, 80129915426), (484, 43376111243), (524, 40064957713), (1441, 14569075532), (2882, 7284537766), (5764, 3642268883), (8111, 2588341492), (15851, 1324461412), (16222, 1294170746), (31702, 662230706), (32444, 647085373), (40823, 514269844), (63404, 331115353), (81646, 257134922), (89221, 235303772), (163292, 128567461), (178442, 117651886), (356884, 58825943), (449053, 46751804), (898106, 23375902), (981431, 21391252), (1062541, 19758332), (1796212, 11687951), (1962862, 10695626), (2125082, 9879166), (3925724, 5347813), (4250164, 4939583)]