21564830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4339}}^1$

素因数の和:4424

約数の個数: 32

約数和(自身を含む): 44997120

約数和(自身を除く): 23432290

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4339, 4970, 8678, 21695, 30373, 43390, 60746, 151865, 303730, 308069, 616138, 1540345, 2156483, 3080690, 4312966, 10782415, 21564830]

約数ペア:

[(1, 21564830), (2, 10782415), (5, 4312966), (7, 3080690), (10, 2156483), (14, 1540345), (35, 616138), (70, 308069), (71, 303730), (142, 151865), (355, 60746), (497, 43390), (710, 30373), (994, 21695), (2485, 8678), (4339, 4970)]