21073269968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1\times {\mathrm{827}}^1$

素因数の和:1732

約数の個数: 80

約数和(自身を含む): 43481592000

約数和(自身を除く): 22408322032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 109, 152, 218, 304, 436, 769, 827, 872, 1538, 1654, 1744, 2071, 3076, 3308, 4142, 6152, 6616, 8284, 12304, 13232, 14611, 15713, 16568, 29222, 31426, 33136, 58444, 62852, 83821, 90143, 116888, 125704, 167642, 180286, 233776, 251408, 335284, 360572, 635963, 670568, 721144, 1271926, 1341136, 1442288, 1592599, 1712717, 2543852, 3185198, 3425434, 5087704, 6370396, 6850868, 10175408, 12083297, 12740792, 13701736, 24166594, 25481584, 27403472, 48333188, 69319967, 96666376, 138639934, 193332752, 277279868, 554559736, 1109119472, 1317079373, 2634158746, 5268317492, 10536634984, 21073269968]

約数ペア:

[(1, 21073269968), (2, 10536634984), (4, 5268317492), (8, 2634158746), (16, 1317079373), (19, 1109119472), (38, 554559736), (76, 277279868), (109, 193332752), (152, 138639934), (218, 96666376), (304, 69319967), (436, 48333188), (769, 27403472), (827, 25481584), (872, 24166594), (1538, 13701736), (1654, 12740792), (1744, 12083297), (2071, 10175408), (3076, 6850868), (3308, 6370396), (4142, 5087704), (6152, 3425434), (6616, 3185198), (8284, 2543852), (12304, 1712717), (13232, 1592599), (14611, 1442288), (15713, 1341136), (16568, 1271926), (29222, 721144), (31426, 670568), (33136, 635963), (58444, 360572), (62852, 335284), (83821, 251408), (90143, 233776), (116888, 180286), (125704, 167642)]