21000978328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{4751}}^1\times {\mathrm{50231}}^1$

素因数の和:54999

約数の個数: 32

約数和(自身を含む): 42966443520

約数和(自身を除く): 21965465192

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 4751, 9502, 19004, 38008, 50231, 52261, 100462, 104522, 200924, 209044, 401848, 418088, 552541, 1105082, 2210164, 4420328, 238647481, 477294962, 954589924, 1909179848, 2625122291, 5250244582, 10500489164, 21000978328]

約数ペア:

[(1, 21000978328), (2, 10500489164), (4, 5250244582), (8, 2625122291), (11, 1909179848), (22, 954589924), (44, 477294962), (88, 238647481), (4751, 4420328), (9502, 2210164), (19004, 1105082), (38008, 552541), (50231, 418088), (52261, 401848), (100462, 209044), (104522, 200924)]