21881538

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{24809}}^1$

素因数の和:24831

約数の個数: 36

約数和(自身を含む): 55152630

約数和(自身を除く): 33271092

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 24809, 49618, 74427, 148854, 173663, 223281, 347326, 446562, 520989, 1041978, 1215641, 1562967, 2431282, 3125934, 3646923, 7293846, 10940769, 21881538]

約数ペア:

[(1, 21881538), (2, 10940769), (3, 7293846), (6, 3646923), (7, 3125934), (9, 2431282), (14, 1562967), (18, 1215641), (21, 1041978), (42, 520989), (49, 446562), (63, 347326), (98, 223281), (126, 173663), (147, 148854), (294, 74427), (441, 49618), (882, 24809)]