221821864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 487602720

約数和(自身を除く): 265780856

約数列:

[1, 2, 4, 8, 11, 22, 31, 43, 44, 61, 62, 86, 88, 122, 124, 172, 244, 248, 341, 344, 473, 488, 671, 682, 946, 961, 1333, 1342, 1364, 1891, 1892, 1922, 2623, 2666, 2684, 2728, 3782, 3784, 3844, 5246, 5332, 5368, 7564, 7688, 10492, 10571, 10664, 14663, 15128, 20801, 20984, 21142, 28853, 29326, 41323, 41602, 42284, 57706, 58621, 58652, 81313, 82646, 83204, 84568, 115412, 117242, 117304, 162626, 165292, 166408, 230824, 234484, 325252, 330584, 454553, 468968, 644831, 650504, 894443, 909106, 1289662, 1788886, 1818212, 2520703, 2579324, 3577772, 3636424, 5041406, 5158648, 7155544, 10082812, 20165624, 27727733, 55455466, 110910932, 221821864]

約数ペア:

[(1, 221821864), (2, 110910932), (4, 55455466), (8, 27727733), (11, 20165624), (22, 10082812), (31, 7155544), (43, 5158648), (44, 5041406), (61, 3636424), (62, 3577772), (86, 2579324), (88, 2520703), (122, 1818212), (124, 1788886), (172, 1289662), (244, 909106), (248, 894443), (341, 650504), (344, 644831), (473, 468968), (488, 454553), (671, 330584), (682, 325252), (946, 234484), (961, 230824), (1333, 166408), (1342, 165292), (1364, 162626), (1891, 117304), (1892, 117242), (1922, 115412), (2623, 84568), (2666, 83204), (2684, 82646), (2728, 81313), (3782, 58652), (3784, 58621), (3844, 57706), (5246, 42284), (5332, 41602), (5368, 41323), (7564, 29326), (7688, 28853), (10492, 21142), (10571, 20984), (10664, 20801), (14663, 15128)]