156784257

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{130981}}^1$

素因数の和:131013

約数の個数: 24

約数和(自身を含む): 272442560

約数和(自身を除く): 115658303

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 130981, 392943, 916867, 1178829, 2488639, 2750601, 7465917, 8251803, 17420473, 22397751, 52261419, 156784257]

約数ペア:

[(1, 156784257), (3, 52261419), (7, 22397751), (9, 17420473), (19, 8251803), (21, 7465917), (57, 2750601), (63, 2488639), (133, 1178829), (171, 916867), (399, 392943), (1197, 130981)]