21061278

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{23879}}^1$

素因数の和:23901

約数の個数: 36

約数和(自身を含む): 53085240

約数和(自身を除く): 32023962

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 23879, 47758, 71637, 143274, 167153, 214911, 334306, 429822, 501459, 1002918, 1170071, 1504377, 2340142, 3008754, 3510213, 7020426, 10530639, 21061278]

約数ペア:

[(1, 21061278), (2, 10530639), (3, 7020426), (6, 3510213), (7, 3008754), (9, 2340142), (14, 1504377), (18, 1170071), (21, 1002918), (42, 501459), (49, 429822), (63, 334306), (98, 214911), (126, 167153), (147, 143274), (294, 71637), (441, 47758), (882, 23879)]