21151008

素因数分解:

$2^5\times 3^2\times {\mathrm{271}}^2$

素因数の和:558

約数の個数: 54

約数和(自身を含む): 60370947

約数和(自身を除く): 39219939

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 271, 288, 542, 813, 1084, 1626, 2168, 2439, 3252, 4336, 4878, 6504, 8672, 9756, 13008, 19512, 26016, 39024, 73441, 78048, 146882, 220323, 293764, 440646, 587528, 660969, 881292, 1175056, 1321938, 1762584, 2350112, 2643876, 3525168, 5287752, 7050336, 10575504, 21151008]

約数ペア:

[(1, 21151008), (2, 10575504), (3, 7050336), (4, 5287752), (6, 3525168), (8, 2643876), (9, 2350112), (12, 1762584), (16, 1321938), (18, 1175056), (24, 881292), (32, 660969), (36, 587528), (48, 440646), (72, 293764), (96, 220323), (144, 146882), (271, 78048), (288, 73441), (542, 39024), (813, 26016), (1084, 19512), (1626, 13008), (2168, 9756), (2439, 8672), (3252, 6504), (4336, 4878)]