278698959

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12973}}^1$

素因数の和:13028

約数の個数: 48

約数和(自身を含む): 518129664

約数和(自身を除く): 239430705

約数列:

[1, 3, 7, 9, 11, 21, 31, 33, 63, 77, 93, 99, 217, 231, 279, 341, 651, 693, 1023, 1953, 2387, 3069, 7161, 12973, 21483, 38919, 90811, 116757, 142703, 272433, 402163, 428109, 817299, 998921, 1206489, 1284327, 2815141, 2996763, 3619467, 4423793, 8445423, 8990289, 13271379, 25336269, 30966551, 39814137, 92899653, 278698959]

約数ペア:

[(1, 278698959), (3, 92899653), (7, 39814137), (9, 30966551), (11, 25336269), (21, 13271379), (31, 8990289), (33, 8445423), (63, 4423793), (77, 3619467), (93, 2996763), (99, 2815141), (217, 1284327), (231, 1206489), (279, 998921), (341, 817299), (651, 428109), (693, 402163), (1023, 272433), (1953, 142703), (2387, 116757), (3069, 90811), (7161, 38919), (12973, 21483)]