21108204

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 41633748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 37, 39, 46, 52, 53, 69, 74, 78, 92, 106, 111, 117, 138, 148, 156, 159, 207, 212, 222, 234, 276, 299, 318, 333, 414, 444, 468, 477, 481, 598, 636, 666, 689, 828, 851, 897, 954, 962, 1196, 1219, 1332, 1378, 1443, 1702, 1794, 1908, 1924, 1961, 2067, 2438, 2553, 2691, 2756, 2886, 3404, 3588, 3657, 3922, 4134, 4329, 4876, 5106, 5382, 5772, 5883, 6201, 7314, 7659, 7844, 8268, 8658, 10212, 10764, 10971, 11063, 11766, 12402, 14628, 15318, 15847, 17316, 17649, 21942, 22126, 23532, 24804, 25493, 30636, 31694, 33189, 35298, 43884, 44252, 45103, 47541, 50986, 63388, 66378, 70596, 76479, 90206, 95082, 99567, 101972, 132756, 135309, 142623, 152958, 180412, 190164, 199134, 229437, 270618, 285246, 305916, 398268, 405927, 458874, 541236, 570492, 586339, 811854, 917748, 1172678, 1623708, 1759017, 2345356, 3518034, 5277051, 7036068, 10554102, 21108204]

約数ペア:

[(1, 21108204), (2, 10554102), (3, 7036068), (4, 5277051), (6, 3518034), (9, 2345356), (12, 1759017), (13, 1623708), (18, 1172678), (23, 917748), (26, 811854), (36, 586339), (37, 570492), (39, 541236), (46, 458874), (52, 405927), (53, 398268), (69, 305916), (74, 285246), (78, 270618), (92, 229437), (106, 199134), (111, 190164), (117, 180412), (138, 152958), (148, 142623), (156, 135309), (159, 132756), (207, 101972), (212, 99567), (222, 95082), (234, 90206), (276, 76479), (299, 70596), (318, 66378), (333, 63388), (414, 50986), (444, 47541), (468, 45103), (477, 44252), (481, 43884), (598, 35298), (636, 33189), (666, 31694), (689, 30636), (828, 25493), (851, 24804), (897, 23532), (954, 22126), (962, 21942), (1196, 17649), (1219, 17316), (1332, 15847), (1378, 15318), (1443, 14628), (1702, 12402), (1794, 11766), (1908, 11063), (1924, 10971), (1961, 10764), (2067, 10212), (2438, 8658), (2553, 8268), (2691, 7844), (2756, 7659), (2886, 7314), (3404, 6201), (3588, 5883), (3657, 5772), (3922, 5382), (4134, 5106), (4329, 4876)]