71017821

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{15877}}^1$

素因数の和:15961

約数の個数: 24

約数和(自身を含む): 118894464

約数和(自身を除く): 47876643

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 15877, 47631, 111139, 142893, 333417, 1000251, 1127267, 3381801, 7890869, 10145403, 23672607, 71017821]

約数ペア:

[(1, 71017821), (3, 23672607), (7, 10145403), (9, 7890869), (21, 3381801), (63, 1127267), (71, 1000251), (213, 333417), (497, 142893), (639, 111139), (1491, 47631), (4473, 15877)]