81277497

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67901}}^1$

素因数の和:67933

約数の個数: 24

約数和(自身を含む): 141236160

約数和(自身を除く): 59958663

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 67901, 203703, 475307, 611109, 1290119, 1425921, 3870357, 4277763, 9030833, 11611071, 27092499, 81277497]

約数ペア:

[(1, 81277497), (3, 27092499), (7, 11611071), (9, 9030833), (19, 4277763), (21, 3870357), (57, 1425921), (63, 1290119), (133, 611109), (171, 475307), (399, 203703), (1197, 67901)]