211517715

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{3929}}^1$

素因数の和:4071

約数の個数: 32

約数和(自身を含む): 351247680

約数和(自身を除く): 139729965

約数列:

[1, 3, 5, 15, 37, 97, 111, 185, 291, 485, 555, 1455, 3589, 3929, 10767, 11787, 17945, 19645, 53835, 58935, 145373, 381113, 436119, 726865, 1143339, 1905565, 2180595, 5716695, 14101181, 42303543, 70505905, 211517715]

約数ペア:

[(1, 211517715), (3, 70505905), (5, 42303543), (15, 14101181), (37, 5716695), (97, 2180595), (111, 1905565), (185, 1143339), (291, 726865), (485, 436119), (555, 381113), (1455, 145373), (3589, 58935), (3929, 53835), (10767, 19645), (11787, 17945)]