81306897

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 127180800

約数和(自身を除く): 45873903

約数列:

[1, 3, 7, 21, 59, 137, 177, 411, 413, 479, 959, 1239, 1437, 2877, 3353, 8083, 10059, 24249, 28261, 56581, 65623, 84783, 169743, 196869, 197827, 459361, 593481, 1378083, 3871757, 11615271, 27102299, 81306897]

約数ペア:

[(1, 81306897), (3, 27102299), (7, 11615271), (21, 3871757), (59, 1378083), (137, 593481), (177, 459361), (411, 197827), (413, 196869), (479, 169743), (959, 84783), (1239, 65623), (1437, 56581), (2877, 28261), (3353, 24249), (8083, 10059)]