128495913

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1021}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 211529472

約数和(自身を除く): 83033559

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 461, 1021, 1383, 3063, 3227, 5993, 7147, 9681, 13273, 17979, 21441, 39819, 41951, 92911, 125853, 278733, 470681, 1412043, 3294767, 6118853, 9884301, 18356559, 42831971, 128495913]

約数ペア:

[(1, 128495913), (3, 42831971), (7, 18356559), (13, 9884301), (21, 6118853), (39, 3294767), (91, 1412043), (273, 470681), (461, 278733), (1021, 125853), (1383, 92911), (3063, 41951), (3227, 39819), (5993, 21441), (7147, 17979), (9681, 13273)]