28327761

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 52311168

約数和(自身を除く): 23983407

約数列:

[1, 3, 7, 9, 11, 21, 33, 41, 63, 77, 99, 123, 231, 287, 369, 451, 693, 861, 997, 1353, 2583, 2991, 3157, 4059, 6979, 8973, 9471, 10967, 20937, 28413, 32901, 40877, 62811, 76769, 98703, 122631, 230307, 286139, 367893, 449647, 690921, 858417, 1348941, 2575251, 3147529, 4046823, 9442587, 28327761]

約数ペア:

[(1, 28327761), (3, 9442587), (7, 4046823), (9, 3147529), (11, 2575251), (21, 1348941), (33, 858417), (41, 690921), (63, 449647), (77, 367893), (99, 286139), (123, 230307), (231, 122631), (287, 98703), (369, 76769), (451, 62811), (693, 40877), (861, 32901), (997, 28413), (1353, 20937), (2583, 10967), (2991, 9471), (3157, 8973), (4059, 6979)]