19782938

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 35188608

約数和(自身を除く): 15405670

約数列:

[1, 2, 7, 14, 37, 74, 181, 211, 259, 362, 422, 518, 1267, 1477, 2534, 2954, 6697, 7807, 13394, 15614, 38191, 46879, 54649, 76382, 93758, 109298, 267337, 534674, 1413067, 2826134, 9891469, 19782938]

約数ペア:

[(1, 19782938), (2, 9891469), (7, 2826134), (14, 1413067), (37, 534674), (74, 267337), (181, 109298), (211, 93758), (259, 76382), (362, 54649), (422, 46879), (518, 38191), (1267, 15614), (1477, 13394), (2534, 7807), (2954, 6697)]