21334355

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:156

約数の個数: 36

約数和(自身を含む): 31332672

約数和(自身を除く): 9998317

約数列:

[1, 5, 7, 31, 35, 49, 53, 155, 217, 245, 265, 371, 1085, 1519, 1643, 1855, 2597, 2809, 7595, 8215, 11501, 12985, 14045, 19663, 57505, 80507, 87079, 98315, 137641, 402535, 435395, 609553, 688205, 3047765, 4266871, 21334355]

約数ペア:

[(1, 21334355), (5, 4266871), (7, 3047765), (31, 688205), (35, 609553), (49, 435395), (53, 402535), (155, 137641), (217, 98315), (245, 87079), (265, 80507), (371, 57505), (1085, 19663), (1519, 14045), (1643, 12985), (1855, 11501), (2597, 8215), (2809, 7595)]