21408984

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{17491}}^1$

素因数の和:17520

約数の個数: 48

約数和(自身を含む): 61396920

約数和(自身を除く): 39987936

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 306, 408, 612, 1224, 17491, 34982, 52473, 69964, 104946, 139928, 157419, 209892, 297347, 314838, 419784, 594694, 629676, 892041, 1189388, 1259352, 1784082, 2378776, 2676123, 3568164, 5352246, 7136328, 10704492, 21408984]

約数ペア:

[(1, 21408984), (2, 10704492), (3, 7136328), (4, 5352246), (6, 3568164), (8, 2676123), (9, 2378776), (12, 1784082), (17, 1259352), (18, 1189388), (24, 892041), (34, 629676), (36, 594694), (51, 419784), (68, 314838), (72, 297347), (102, 209892), (136, 157419), (153, 139928), (204, 104946), (306, 69964), (408, 52473), (612, 34982), (1224, 17491)]