21489112

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17789}}^1$

素因数の和:17946

約数の個数: 16

約数和(自身を含む): 40561200

約数和(自身を除く): 19072088

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17789, 35578, 71156, 142312, 2686139, 5372278, 10744556, 21489112]

約数ペア:

[(1, 21489112), (2, 10744556), (4, 5372278), (8, 2686139), (151, 142312), (302, 71156), (604, 35578), (1208, 17789)]