21455779412

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{691}}^1\times {\mathrm{21503}}^1$

素因数の和:22236

約数の個数: 36

約数和(自身を含む): 39687008256

約数和(自身を除く): 18231228844

約数列:

[1, 2, 4, 19, 38, 76, 361, 691, 722, 1382, 1444, 2764, 13129, 21503, 26258, 43006, 52516, 86012, 249451, 408557, 498902, 817114, 997804, 1634228, 7762583, 14858573, 15525166, 29717146, 31050332, 59434292, 282312887, 564625774, 1129251548, 5363944853, 10727889706, 21455779412]

約数ペア:

[(1, 21455779412), (2, 10727889706), (4, 5363944853), (19, 1129251548), (38, 564625774), (76, 282312887), (361, 59434292), (691, 31050332), (722, 29717146), (1382, 15525166), (1444, 14858573), (2764, 7762583), (13129, 1634228), (21503, 997804), (26258, 817114), (43006, 498902), (52516, 408557), (86012, 249451)]