21000836312

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{80173}}^1$

素因数の和:80555

約数の個数: 32

約数和(自身を含む): 39830443200

約数和(自身を除く): 18829606888

約数列:

[1, 2, 4, 8, 137, 239, 274, 478, 548, 956, 1096, 1912, 32743, 65486, 80173, 130972, 160346, 261944, 320692, 641384, 10983701, 19161347, 21967402, 38322694, 43934804, 76645388, 87869608, 153290776, 2625104539, 5250209078, 10500418156, 21000836312]

約数ペア:

[(1, 21000836312), (2, 10500418156), (4, 5250209078), (8, 2625104539), (137, 153290776), (239, 87869608), (274, 76645388), (478, 43934804), (548, 38322694), (956, 21967402), (1096, 19161347), (1912, 10983701), (32743, 641384), (65486, 320692), (80173, 261944), (130972, 160346)]