21376670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9851}}^1$

素因数の和:9896

約数の個数: 32

約数和(自身を含む): 45398016

約数和(自身を除く): 24021346

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9851, 19702, 49255, 68957, 98510, 137914, 305381, 344785, 610762, 689570, 1526905, 2137667, 3053810, 4275334, 10688335, 21376670]

約数ペア:

[(1, 21376670), (2, 10688335), (5, 4275334), (7, 3053810), (10, 2137667), (14, 1526905), (31, 689570), (35, 610762), (62, 344785), (70, 305381), (155, 137914), (217, 98510), (310, 68957), (434, 49255), (1085, 19702), (2170, 9851)]