7891863

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 12533760

約数和(自身を除く): 4641897

約数列:

[1, 3, 7, 21, 67, 71, 79, 201, 213, 237, 469, 497, 553, 1407, 1491, 1659, 4757, 5293, 5609, 14271, 15879, 16827, 33299, 37051, 39263, 99897, 111153, 117789, 375803, 1127409, 2630621, 7891863]

約数ペア:

[(1, 7891863), (3, 2630621), (7, 1127409), (21, 375803), (67, 117789), (71, 111153), (79, 99897), (201, 39263), (213, 37051), (237, 33299), (469, 16827), (497, 15879), (553, 14271), (1407, 5609), (1491, 5293), (1659, 4757)]