209042988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 621341952

約数和(自身を除く): 412298964

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 121, 131, 132, 154, 157, 231, 242, 262, 308, 314, 363, 393, 462, 471, 484, 524, 628, 726, 786, 847, 917, 924, 942, 1099, 1441, 1452, 1572, 1694, 1727, 1834, 1884, 2198, 2541, 2751, 2882, 3297, 3388, 3454, 3668, 4323, 4396, 5082, 5181, 5502, 5764, 6594, 6908, 8646, 10087, 10164, 10362, 11004, 12089, 13188, 15851, 17292, 18997, 20174, 20567, 20724, 24178, 30261, 31702, 36267, 37994, 40348, 41134, 47553, 48356, 56991, 60522, 61701, 63404, 72534, 75988, 82268, 95106, 110957, 113982, 121044, 123402, 132979, 143969, 145068, 190212, 221914, 226237, 227964, 246804, 265958, 287938, 332871, 398937, 431907, 443828, 452474, 531916, 575876, 665742, 678711, 797874, 863814, 904948, 1331484, 1357422, 1583659, 1595748, 1727628, 2488607, 2714844, 3167318, 4750977, 4977214, 6334636, 7465821, 9501954, 9954428, 14931642, 17420249, 19003908, 29863284, 34840498, 52260747, 69680996, 104521494, 209042988]

約数ペア:

[(1, 209042988), (2, 104521494), (3, 69680996), (4, 52260747), (6, 34840498), (7, 29863284), (11, 19003908), (12, 17420249), (14, 14931642), (21, 9954428), (22, 9501954), (28, 7465821), (33, 6334636), (42, 4977214), (44, 4750977), (66, 3167318), (77, 2714844), (84, 2488607), (121, 1727628), (131, 1595748), (132, 1583659), (154, 1357422), (157, 1331484), (231, 904948), (242, 863814), (262, 797874), (308, 678711), (314, 665742), (363, 575876), (393, 531916), (462, 452474), (471, 443828), (484, 431907), (524, 398937), (628, 332871), (726, 287938), (786, 265958), (847, 246804), (917, 227964), (924, 226237), (942, 221914), (1099, 190212), (1441, 145068), (1452, 143969), (1572, 132979), (1694, 123402), (1727, 121044), (1834, 113982), (1884, 110957), (2198, 95106), (2541, 82268), (2751, 75988), (2882, 72534), (3297, 63404), (3388, 61701), (3454, 60522), (3668, 56991), (4323, 48356), (4396, 47553), (5082, 41134), (5181, 40348), (5502, 37994), (5764, 36267), (6594, 31702), (6908, 30261), (8646, 24178), (10087, 20724), (10164, 20567), (10362, 20174), (11004, 18997), (12089, 17292), (13188, 15851)]