20397642

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1871}}^1$

素因数の和:1978

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 22733238

約数列:

[1, 2, 3, 6, 23, 46, 69, 79, 138, 158, 237, 474, 1817, 1871, 3634, 3742, 5451, 5613, 10902, 11226, 43033, 86066, 129099, 147809, 258198, 295618, 443427, 886854, 3399607, 6799214, 10198821, 20397642]

約数ペア:

[(1, 20397642), (2, 10198821), (3, 6799214), (6, 3399607), (23, 886854), (46, 443427), (69, 295618), (79, 258198), (138, 147809), (158, 129099), (237, 86066), (474, 43033), (1817, 11226), (1871, 10902), (3634, 5613), (3742, 5451)]