20565688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17977}}^1$

素因数の和:18007

約数の個数: 32

約数和(自身を含む): 45304560

約数和(自身を除く): 24738872

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 17977, 35954, 71908, 143816, 197747, 233701, 395494, 467402, 790988, 934804, 1581976, 1869608, 2570711, 5141422, 10282844, 20565688]

約数ペア:

[(1, 20565688), (2, 10282844), (4, 5141422), (8, 2570711), (11, 1869608), (13, 1581976), (22, 934804), (26, 790988), (44, 467402), (52, 395494), (88, 233701), (104, 197747), (143, 143816), (286, 71908), (572, 35954), (1144, 17977)]