280461489

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{63901}}^1$

素因数の和:63941

約数の個数: 32

約数和(自身を含む): 490767360

約数和(自身を除く): 210305871

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 63901, 191703, 447307, 702911, 1214119, 1341921, 2108733, 3642357, 4920377, 8498833, 13355309, 14761131, 25496499, 40065927, 93487163, 280461489]

約数ペア:

[(1, 280461489), (3, 93487163), (7, 40065927), (11, 25496499), (19, 14761131), (21, 13355309), (33, 8498833), (57, 4920377), (77, 3642357), (133, 2108733), (209, 1341921), (231, 1214119), (399, 702911), (627, 447307), (1463, 191703), (4389, 63901)]