21919912

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9547}}^1$

素因数の和:9601

約数の個数: 32

約数和(自身を含む): 48121920

約数和(自身を除く): 26202008

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9547, 19094, 38188, 66829, 76376, 133658, 267316, 391427, 534632, 782854, 1565708, 2739989, 3131416, 5479978, 10959956, 21919912]

約数ペア:

[(1, 21919912), (2, 10959956), (4, 5479978), (7, 3131416), (8, 2739989), (14, 1565708), (28, 782854), (41, 534632), (56, 391427), (82, 267316), (164, 133658), (287, 76376), (328, 66829), (574, 38188), (1148, 19094), (2296, 9547)]