21822591

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2801}}^1$

素因数の和:2871

約数の個数: 24

約数和(自身を含む): 34498224

約数和(自身を除く): 12675633

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 2801, 7791, 8403, 19607, 58821, 137249, 148453, 411747, 445359, 1039171, 3117513, 7274197, 21822591]

約数ペア:

[(1, 21822591), (3, 7274197), (7, 3117513), (21, 1039171), (49, 445359), (53, 411747), (147, 148453), (159, 137249), (371, 58821), (1113, 19607), (2597, 8403), (2801, 7791)]