21981567234

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{249853}}^1$

素因数の和:249943

約数の個数: 64

約数和(自身を含む): 50658398208

約数和(自身を除く): 28676830974

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 43, 62, 66, 86, 93, 129, 186, 258, 341, 473, 682, 946, 1023, 1333, 1419, 2046, 2666, 2838, 3999, 7998, 14663, 29326, 43989, 87978, 249853, 499706, 749559, 1499118, 2748383, 5496766, 7745443, 8245149, 10743679, 15490886, 16490298, 21487358, 23236329, 32231037, 46472658, 64462074, 85199873, 118180469, 170399746, 236360938, 255599619, 333054049, 354541407, 511199238, 666108098, 709082814, 999162147, 1998324294, 3663594539, 7327189078, 10990783617, 21981567234]

約数ペア:

[(1, 21981567234), (2, 10990783617), (3, 7327189078), (6, 3663594539), (11, 1998324294), (22, 999162147), (31, 709082814), (33, 666108098), (43, 511199238), (62, 354541407), (66, 333054049), (86, 255599619), (93, 236360938), (129, 170399746), (186, 118180469), (258, 85199873), (341, 64462074), (473, 46472658), (682, 32231037), (946, 23236329), (1023, 21487358), (1333, 16490298), (1419, 15490886), (2046, 10743679), (2666, 8245149), (2838, 7745443), (3999, 5496766), (7998, 2748383), (14663, 1499118), (29326, 749559), (43989, 499706), (87978, 249853)]