21451535

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 32182272

約数和(自身を除く): 10730737

約数列:

[1, 5, 7, 17, 31, 35, 85, 119, 155, 217, 527, 595, 1085, 1163, 2635, 3689, 5815, 8141, 18445, 19771, 36053, 40705, 98855, 138397, 180265, 252371, 612901, 691985, 1261855, 3064505, 4290307, 21451535]

約数ペア:

[(1, 21451535), (5, 4290307), (7, 3064505), (17, 1261855), (31, 691985), (35, 612901), (85, 252371), (119, 180265), (155, 138397), (217, 98855), (527, 40705), (595, 36053), (1085, 19771), (1163, 18445), (2635, 8141), (3689, 5815)]