20761884

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 63903840

約数和(自身を除く): 43141956

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 37, 39, 44, 52, 66, 74, 78, 99, 109, 111, 117, 132, 143, 148, 156, 198, 218, 222, 234, 286, 327, 333, 396, 407, 429, 436, 444, 468, 481, 572, 654, 666, 814, 858, 962, 981, 1199, 1221, 1287, 1308, 1332, 1417, 1443, 1628, 1716, 1924, 1962, 2398, 2442, 2574, 2834, 2886, 3597, 3663, 3924, 4033, 4251, 4329, 4796, 4884, 5148, 5291, 5668, 5772, 7194, 7326, 8066, 8502, 8658, 10582, 10791, 12099, 12753, 14388, 14652, 15587, 15873, 16132, 17004, 17316, 21164, 21582, 24198, 25506, 31174, 31746, 36297, 43164, 44363, 46761, 47619, 48396, 51012, 52429, 62348, 63492, 72594, 88726, 93522, 95238, 104858, 133089, 140283, 145188, 157287, 177452, 187044, 190476, 209716, 266178, 280566, 314574, 399267, 471861, 532356, 561132, 576719, 629148, 798534, 943722, 1153438, 1597068, 1730157, 1887444, 2306876, 3460314, 5190471, 6920628, 10380942, 20761884]

約数ペア:

[(1, 20761884), (2, 10380942), (3, 6920628), (4, 5190471), (6, 3460314), (9, 2306876), (11, 1887444), (12, 1730157), (13, 1597068), (18, 1153438), (22, 943722), (26, 798534), (33, 629148), (36, 576719), (37, 561132), (39, 532356), (44, 471861), (52, 399267), (66, 314574), (74, 280566), (78, 266178), (99, 209716), (109, 190476), (111, 187044), (117, 177452), (132, 157287), (143, 145188), (148, 140283), (156, 133089), (198, 104858), (218, 95238), (222, 93522), (234, 88726), (286, 72594), (327, 63492), (333, 62348), (396, 52429), (407, 51012), (429, 48396), (436, 47619), (444, 46761), (468, 44363), (481, 43164), (572, 36297), (654, 31746), (666, 31174), (814, 25506), (858, 24198), (962, 21582), (981, 21164), (1199, 17316), (1221, 17004), (1287, 16132), (1308, 15873), (1332, 15587), (1417, 14652), (1443, 14388), (1628, 12753), (1716, 12099), (1924, 10791), (1962, 10582), (2398, 8658), (2442, 8502), (2574, 8066), (2834, 7326), (2886, 7194), (3597, 5772), (3663, 5668), (3924, 5291), (4033, 5148), (4251, 4884), (4329, 4796)]