17966921

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1321}}^1$

素因数の和:1424

約数の個数: 16

約数和(自身を含む): 21575040

約数和(自身を除く): 3608119

約数列:

[1, 7, 29, 67, 203, 469, 1321, 1943, 9247, 13601, 38309, 88507, 268163, 619549, 2566703, 17966921]

約数ペア:

[(1, 17966921), (7, 2566703), (29, 619549), (67, 268163), (203, 88507), (469, 38309), (1321, 13601), (1943, 9247)]