21997128

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{19501}}^1$

素因数の和:19557

約数の個数: 32

約数和(自身を含む): 56165760

約数和(自身を除く): 34168632

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 564, 1128, 19501, 39002, 58503, 78004, 117006, 156008, 234012, 468024, 916547, 1833094, 2749641, 3666188, 5499282, 7332376, 10998564, 21997128]

約数ペア:

[(1, 21997128), (2, 10998564), (3, 7332376), (4, 5499282), (6, 3666188), (8, 2749641), (12, 1833094), (24, 916547), (47, 468024), (94, 234012), (141, 156008), (188, 117006), (282, 78004), (376, 58503), (564, 39002), (1128, 19501)]