213881255

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{5653}}^1$

素因数の和:5735

約数の個数: 32

約数和(自身を含む): 312643584

約数和(自身を除く): 98762329

約数列:

[1, 5, 7, 23, 35, 47, 115, 161, 235, 329, 805, 1081, 1645, 5405, 5653, 7567, 28265, 37835, 39571, 130019, 197855, 265691, 650095, 910133, 1328455, 1859837, 4550665, 6110893, 9299185, 30554465, 42776251, 213881255]

約数ペア:

[(1, 213881255), (5, 42776251), (7, 30554465), (23, 9299185), (35, 6110893), (47, 4550665), (115, 1859837), (161, 1328455), (235, 910133), (329, 650095), (805, 265691), (1081, 197855), (1645, 130019), (5405, 39571), (5653, 37835), (7567, 28265)]