19540484

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 34927200

約数和(自身を除く): 15386716

約数列:

[1, 2, 4, 89, 131, 178, 262, 356, 419, 524, 838, 1676, 11659, 23318, 37291, 46636, 54889, 74582, 109778, 149164, 219556, 4885121, 9770242, 19540484]

約数ペア:

[(1, 19540484), (2, 9770242), (4, 4885121), (89, 219556), (131, 149164), (178, 109778), (262, 74582), (356, 54889), (419, 46636), (524, 37291), (838, 23318), (1676, 11659)]