18888968484

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{890821}}^1$

素因数の和:890881

約数の個数: 72

約数和(自身を含む): 51881473280

約数和(自身を除く): 32992504796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 5301, 7068, 10602, 21204, 890821, 1781642, 2672463, 3563284, 5344926, 8017389, 10689852, 16034778, 16925599, 27615451, 32069556, 33851198, 50776797, 55230902, 67702396, 82846353, 101553594, 110461804, 152330391, 165692706, 203107188, 248539059, 304660782, 331385412, 497078118, 524693569, 609321564, 994156236, 1049387138, 1574080707, 2098774276, 3148161414, 4722242121, 6296322828, 9444484242, 18888968484]

約数ペア:

[(1, 18888968484), (2, 9444484242), (3, 6296322828), (4, 4722242121), (6, 3148161414), (9, 2098774276), (12, 1574080707), (18, 1049387138), (19, 994156236), (31, 609321564), (36, 524693569), (38, 497078118), (57, 331385412), (62, 304660782), (76, 248539059), (93, 203107188), (114, 165692706), (124, 152330391), (171, 110461804), (186, 101553594), (228, 82846353), (279, 67702396), (342, 55230902), (372, 50776797), (558, 33851198), (589, 32069556), (684, 27615451), (1116, 16925599), (1178, 16034778), (1767, 10689852), (2356, 8017389), (3534, 5344926), (5301, 3563284), (7068, 2672463), (10602, 1781642), (21204, 890821)]