21443429

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 26593920

約数和(自身を除く): 5150491

約数列:

[1, 7, 23, 49, 53, 161, 359, 371, 1127, 1219, 2513, 2597, 8257, 8533, 17591, 19027, 57799, 59731, 133189, 404593, 437621, 932323, 3063347, 21443429]

約数ペア:

[(1, 21443429), (7, 3063347), (23, 932323), (49, 437621), (53, 404593), (161, 133189), (359, 59731), (371, 57799), (1127, 19027), (1219, 17591), (2513, 8533), (2597, 8257)]