31115679

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 18236001

約数列:

[1, 3, 7, 21, 41, 71, 123, 213, 287, 497, 509, 861, 1491, 1527, 2911, 3563, 8733, 10689, 20377, 20869, 36139, 61131, 62607, 108417, 146083, 252973, 438249, 758919, 1481699, 4445097, 10371893, 31115679]

約数ペア:

[(1, 31115679), (3, 10371893), (7, 4445097), (21, 1481699), (41, 758919), (71, 438249), (123, 252973), (213, 146083), (287, 108417), (497, 62607), (509, 61131), (861, 36139), (1491, 20869), (1527, 20377), (2911, 10689), (3563, 8733)]