21000383989

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{7681}}^1$

素因数の和:7877

約数の個数: 32

約数和(自身を含む): 23811987584

約数和(自身を除く): 2811603595

約数列:

[1, 13, 43, 67, 73, 559, 871, 949, 2881, 3139, 4891, 7681, 37453, 40807, 63583, 99853, 210313, 330283, 514627, 560713, 2734069, 4293679, 6690151, 7289269, 22128961, 24110659, 37567771, 287676493, 313438567, 488381023, 1615414153, 21000383989]

約数ペア:

[(1, 21000383989), (13, 1615414153), (43, 488381023), (67, 313438567), (73, 287676493), (559, 37567771), (871, 24110659), (949, 22128961), (2881, 7289269), (3139, 6690151), (4891, 4293679), (7681, 2734069), (37453, 560713), (40807, 514627), (63583, 330283), (99853, 210313)]