20005499

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 21977760

約数和(自身を除く): 1972261

約数列:

[1, 19, 41, 61, 421, 779, 1159, 2501, 7999, 17261, 25681, 47519, 327959, 487939, 1052921, 20005499]

約数ペア:

[(1, 20005499), (19, 1052921), (41, 487939), (61, 327959), (421, 47519), (779, 25681), (1159, 17261), (2501, 7999)]