22019921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 6872239

約数列:

[1, 7, 11, 37, 59, 77, 131, 259, 407, 413, 649, 917, 1441, 2183, 2849, 4543, 4847, 7729, 10087, 15281, 24013, 33929, 53317, 54103, 85019, 168091, 285973, 373219, 595133, 2001811, 3145703, 22019921]

約数ペア:

[(1, 22019921), (7, 3145703), (11, 2001811), (37, 595133), (59, 373219), (77, 285973), (131, 168091), (259, 85019), (407, 54103), (413, 53317), (649, 33929), (917, 24013), (1441, 15281), (2183, 10087), (2849, 7729), (4543, 4847)]