16840785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1289}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 29473920

約数和(自身を除く): 12633135

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1289, 2613, 3867, 4355, 6445, 13065, 16757, 19335, 50271, 83785, 86363, 251355, 259089, 431815, 1122719, 1295445, 3368157, 5613595, 16840785]

約数ペア:

[(1, 16840785), (3, 5613595), (5, 3368157), (13, 1295445), (15, 1122719), (39, 431815), (65, 259089), (67, 251355), (195, 86363), (201, 83785), (335, 50271), (871, 19335), (1005, 16757), (1289, 13065), (2613, 6445), (3867, 4355)]