21805768

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3499}}^1$

素因数の和:3565

約数の個数: 32

約数和(自身を含む): 44100000

約数和(自身を除く): 22294232

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 3116, 3499, 6232, 6998, 13996, 27992, 66481, 132962, 143459, 265924, 286918, 531848, 573836, 1147672, 2725721, 5451442, 10902884, 21805768]

約数ペア:

[(1, 21805768), (2, 10902884), (4, 5451442), (8, 2725721), (19, 1147672), (38, 573836), (41, 531848), (76, 286918), (82, 265924), (152, 143459), (164, 132962), (328, 66481), (779, 27992), (1558, 13996), (3116, 6998), (3499, 6232)]