18342121

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 22387776

約数和(自身を除く): 4045655

約数列:

[1, 7, 37, 49, 67, 151, 259, 469, 1057, 1813, 2479, 3283, 5587, 7399, 10117, 17353, 39109, 70819, 121471, 273763, 374329, 495733, 2620303, 18342121]

約数ペア:

[(1, 18342121), (7, 2620303), (37, 495733), (49, 374329), (67, 273763), (151, 121471), (259, 70819), (469, 39109), (1057, 17353), (1813, 10117), (2479, 7399), (3283, 5587)]