20839884

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 56448000

約数和(自身を除く): 35608116

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 79, 89, 114, 156, 158, 178, 228, 237, 247, 267, 316, 356, 474, 494, 534, 741, 948, 988, 1027, 1068, 1157, 1482, 1501, 1691, 2054, 2314, 2964, 3002, 3081, 3382, 3471, 4108, 4503, 4628, 5073, 6004, 6162, 6764, 6942, 7031, 9006, 10146, 12324, 13884, 14062, 18012, 19513, 20292, 21093, 21983, 28124, 39026, 42186, 43966, 58539, 65949, 78052, 84372, 87932, 91403, 117078, 131898, 133589, 182806, 234156, 263796, 267178, 274209, 365612, 400767, 534356, 548418, 801534, 1096836, 1603068, 1736657, 3473314, 5209971, 6946628, 10419942, 20839884]

約数ペア:

[(1, 20839884), (2, 10419942), (3, 6946628), (4, 5209971), (6, 3473314), (12, 1736657), (13, 1603068), (19, 1096836), (26, 801534), (38, 548418), (39, 534356), (52, 400767), (57, 365612), (76, 274209), (78, 267178), (79, 263796), (89, 234156), (114, 182806), (156, 133589), (158, 131898), (178, 117078), (228, 91403), (237, 87932), (247, 84372), (267, 78052), (316, 65949), (356, 58539), (474, 43966), (494, 42186), (534, 39026), (741, 28124), (948, 21983), (988, 21093), (1027, 20292), (1068, 19513), (1157, 18012), (1482, 14062), (1501, 13884), (1691, 12324), (2054, 10146), (2314, 9006), (2964, 7031), (3002, 6942), (3081, 6764), (3382, 6162), (3471, 6004), (4108, 5073), (4503, 4628)]