21308773670

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1\times {\mathrm{52321}}^1$

素因数の和:52760

約数の個数: 32

約数和(自身を含む): 38764323360

約数和(自身を除く): 17455549690

約数列:

[1, 2, 5, 10, 139, 278, 293, 586, 695, 1390, 1465, 2930, 40727, 52321, 81454, 104642, 203635, 261605, 407270, 523210, 7272619, 14545238, 15330053, 30660106, 36363095, 72726190, 76650265, 153300530, 2130877367, 4261754734, 10654386835, 21308773670]

約数ペア:

[(1, 21308773670), (2, 10654386835), (5, 4261754734), (10, 2130877367), (139, 153300530), (278, 76650265), (293, 72726190), (586, 36363095), (695, 30660106), (1390, 15330053), (1465, 14545238), (2930, 7272619), (40727, 523210), (52321, 407270), (81454, 261605), (104642, 203635)]