128971713

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 191987712

約数和(自身を除く): 63015999

約数列:

[1, 3, 13, 39, 47, 71, 141, 213, 611, 923, 991, 1833, 2769, 2973, 3337, 10011, 12883, 38649, 43381, 46577, 70361, 130143, 139731, 211083, 605501, 914693, 1816503, 2744079, 3306967, 9920901, 42990571, 128971713]

約数ペア:

[(1, 128971713), (3, 42990571), (13, 9920901), (39, 3306967), (47, 2744079), (71, 1816503), (141, 914693), (213, 605501), (611, 211083), (923, 139731), (991, 130143), (1833, 70361), (2769, 46577), (2973, 43381), (3337, 38649), (10011, 12883)]