21070908

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{5273}}^1$

素因数の和:5323

約数の個数: 48

約数和(自身を含む): 56115360

約数和(自身を除く): 35044452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 5273, 10546, 15819, 21092, 31638, 47457, 63276, 94914, 142371, 189828, 195101, 284742, 390202, 569484, 585303, 780404, 1170606, 1755909, 2341212, 3511818, 5267727, 7023636, 10535454, 21070908]

約数ペア:

[(1, 21070908), (2, 10535454), (3, 7023636), (4, 5267727), (6, 3511818), (9, 2341212), (12, 1755909), (18, 1170606), (27, 780404), (36, 585303), (37, 569484), (54, 390202), (74, 284742), (108, 195101), (111, 189828), (148, 142371), (222, 94914), (333, 63276), (444, 47457), (666, 31638), (999, 21092), (1332, 15819), (1998, 10546), (3996, 5273)]