21007218

素因数分解:

$2^1\times 3^1\times {\mathrm{991}}^1\times {\mathrm{3533}}^1$

素因数の和:4529

約数の個数: 16

約数和(自身を含む): 42068736

約数和(自身を除く): 21061518

約数列:

[1, 2, 3, 6, 991, 1982, 2973, 3533, 5946, 7066, 10599, 21198, 3501203, 7002406, 10503609, 21007218]

約数ペア:

[(1, 21007218), (2, 10503609), (3, 7002406), (6, 3501203), (991, 21198), (1982, 10599), (2973, 7066), (3533, 5946)]