21617818

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{5563}}^1$

素因数の和:5661

約数の個数: 16

約数和(自身を含む): 34051680

約数和(自身を除く): 12433862

約数列:

[1, 2, 29, 58, 67, 134, 1943, 3886, 5563, 11126, 161327, 322654, 372721, 745442, 10808909, 21617818]

約数ペア:

[(1, 21617818), (2, 10808909), (29, 745442), (58, 372721), (67, 322654), (134, 161327), (1943, 11126), (3886, 5563)]