1999870821

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{19141}}^1$

素因数の和:19226

約数の個数: 48

約数和(自身を含む): 3344490240

約数和(自身を除く): 1344619419

約数列:

[1, 3, 9, 13, 19, 39, 47, 57, 117, 141, 171, 247, 423, 611, 741, 893, 1833, 2223, 2679, 5499, 8037, 11609, 19141, 34827, 57423, 104481, 172269, 248833, 363679, 746499, 899627, 1091037, 2239497, 2698881, 3273111, 4727827, 8096643, 11695151, 14183481, 17092913, 35085453, 42550443, 51278739, 105256359, 153836217, 222207869, 666623607, 1999870821]

約数ペア:

[(1, 1999870821), (3, 666623607), (9, 222207869), (13, 153836217), (19, 105256359), (39, 51278739), (47, 42550443), (57, 35085453), (117, 17092913), (141, 14183481), (171, 11695151), (247, 8096643), (423, 4727827), (611, 3273111), (741, 2698881), (893, 2239497), (1833, 1091037), (2223, 899627), (2679, 746499), (5499, 363679), (8037, 248833), (11609, 172269), (19141, 104481), (34827, 57423)]