17971473

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 27596800

約数和(自身を除く): 9625327

約数列:

[1, 3, 13, 19, 39, 57, 79, 237, 247, 307, 741, 921, 1027, 1501, 3081, 3991, 4503, 5833, 11973, 17499, 19513, 24253, 58539, 72759, 75829, 227487, 315289, 460807, 945867, 1382421, 5990491, 17971473]

約数ペア:

[(1, 17971473), (3, 5990491), (13, 1382421), (19, 945867), (39, 460807), (57, 315289), (79, 227487), (237, 75829), (247, 72759), (307, 58539), (741, 24253), (921, 19513), (1027, 17499), (1501, 11973), (3081, 5833), (3991, 4503)]