20367921

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{967}}^1$

素因数の和:1053

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13086159

約数列:

[1, 3, 7, 17, 21, 51, 59, 119, 177, 357, 413, 967, 1003, 1239, 2901, 3009, 6769, 7021, 16439, 20307, 21063, 49317, 57053, 115073, 171159, 345219, 399371, 969901, 1198113, 2909703, 6789307, 20367921]

約数ペア:

[(1, 20367921), (3, 6789307), (7, 2909703), (17, 1198113), (21, 969901), (51, 399371), (59, 345219), (119, 171159), (177, 115073), (357, 57053), (413, 49317), (967, 21063), (1003, 20307), (1239, 16439), (2901, 7021), (3009, 6769)]