71345589

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1097}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 115246080

約数和(自身を除く): 43900491

約数列:

[1, 3, 7, 19, 21, 57, 133, 163, 399, 489, 1097, 1141, 3097, 3291, 3423, 7679, 9291, 20843, 21679, 23037, 62529, 65037, 145901, 178811, 437703, 536433, 1251677, 3397409, 3755031, 10192227, 23781863, 71345589]

約数ペア:

[(1, 71345589), (3, 23781863), (7, 10192227), (19, 3755031), (21, 3397409), (57, 1251677), (133, 536433), (163, 437703), (399, 178811), (489, 145901), (1097, 65037), (1141, 62529), (3097, 23037), (3291, 21679), (3423, 20843), (7679, 9291)]