21186914

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5273}}^1$

素因数の和:5330

約数の個数: 24

約数和(自身を含む): 37877868

約数和(自身を除く): 16690954

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5273, 10546, 36911, 73822, 216193, 258377, 432386, 516754, 1513351, 3026702, 10593457, 21186914]

約数ペア:

[(1, 21186914), (2, 10593457), (7, 3026702), (14, 1513351), (41, 516754), (49, 432386), (82, 258377), (98, 216193), (287, 73822), (574, 36911), (2009, 10546), (4018, 5273)]