21691334

素因数分解:

$2^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{15973}}^1$

素因数の和:16079

約数の個数: 16

約数和(自身を含む): 37570848

約数和(自身を除く): 15879514

約数列:

[1, 2, 7, 14, 97, 194, 679, 1358, 15973, 31946, 111811, 223622, 1549381, 3098762, 10845667, 21691334]

約数ペア:

[(1, 21691334), (2, 10845667), (7, 3098762), (14, 1549381), (97, 223622), (194, 111811), (679, 31946), (1358, 15973)]