21624603

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 40857600

約数和(自身を除く): 19232997

約数列:

[1, 3, 7, 11, 13, 19, 21, 33, 39, 57, 77, 91, 133, 143, 209, 231, 247, 273, 379, 399, 429, 627, 741, 1001, 1137, 1463, 1729, 2653, 2717, 3003, 4169, 4389, 4927, 5187, 7201, 7959, 8151, 12507, 14781, 19019, 21603, 29183, 34489, 50407, 54197, 57057, 79211, 87549, 93613, 103467, 151221, 162591, 237633, 280839, 379379, 554477, 655291, 1029743, 1138137, 1663431, 1965873, 3089229, 7208201, 21624603]

約数ペア:

[(1, 21624603), (3, 7208201), (7, 3089229), (11, 1965873), (13, 1663431), (19, 1138137), (21, 1029743), (33, 655291), (39, 554477), (57, 379379), (77, 280839), (91, 237633), (133, 162591), (143, 151221), (209, 103467), (231, 93613), (247, 87549), (273, 79211), (379, 57057), (399, 54197), (429, 50407), (627, 34489), (741, 29183), (1001, 21603), (1137, 19019), (1463, 14781), (1729, 12507), (2653, 8151), (2717, 7959), (3003, 7201), (4169, 5187), (4389, 4927)]