20559938

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2089}}^1$

素因数の和:2154

約数の個数: 32

約数和(自身を含む): 38121600

約数和(自身を除く): 17561662

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 2089, 4178, 4921, 9842, 14623, 29246, 39691, 77293, 79382, 154586, 277837, 541051, 555674, 1082102, 1468567, 2937134, 10279969, 20559938]

約数ペア:

[(1, 20559938), (2, 10279969), (7, 2937134), (14, 1468567), (19, 1082102), (37, 555674), (38, 541051), (74, 277837), (133, 154586), (259, 79382), (266, 77293), (518, 39691), (703, 29246), (1406, 14623), (2089, 9842), (4178, 4921)]