21039920642

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1\times {\mathrm{26777}}^1$

素因数の和:27482

約数の個数: 32

約数和(自身を含む): 34765984512

約数和(自身を除く): 13726063870

約数列:

[1, 2, 13, 26, 47, 94, 611, 643, 1222, 1286, 8359, 16718, 26777, 30221, 53554, 60442, 348101, 392873, 696202, 785746, 1258519, 2517038, 16360747, 17217611, 32721494, 34435222, 223828943, 447657886, 809227717, 1618455434, 10519960321, 21039920642]

約数ペア:

[(1, 21039920642), (2, 10519960321), (13, 1618455434), (26, 809227717), (47, 447657886), (94, 223828943), (611, 34435222), (643, 32721494), (1222, 17217611), (1286, 16360747), (8359, 2517038), (16718, 1258519), (26777, 785746), (30221, 696202), (53554, 392873), (60442, 348101)]