21459378

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1021}}^1$

素因数の和:1170

約数の個数: 32

約数和(自身を含む): 44739072

約数和(自身を除く): 23279694

約数列:

[1, 2, 3, 6, 31, 62, 93, 113, 186, 226, 339, 678, 1021, 2042, 3063, 3503, 6126, 7006, 10509, 21018, 31651, 63302, 94953, 115373, 189906, 230746, 346119, 692238, 3576563, 7153126, 10729689, 21459378]

約数ペア:

[(1, 21459378), (2, 10729689), (3, 7153126), (6, 3576563), (31, 692238), (62, 346119), (93, 230746), (113, 189906), (186, 115373), (226, 94953), (339, 63302), (678, 31651), (1021, 21018), (2042, 10509), (3063, 7006), (3503, 6126)]