17720748

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2311}}^1$

素因数の和:2395

約数の個数: 48

約数和(自身を含む): 46609920

約数和(自身を除く): 28889172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2311, 2556, 3834, 4622, 6933, 7668, 9244, 13866, 20799, 27732, 41598, 62397, 83196, 124794, 164081, 249588, 328162, 492243, 656324, 984486, 1476729, 1968972, 2953458, 4430187, 5906916, 8860374, 17720748]

約数ペア:

[(1, 17720748), (2, 8860374), (3, 5906916), (4, 4430187), (6, 2953458), (9, 1968972), (12, 1476729), (18, 984486), (27, 656324), (36, 492243), (54, 328162), (71, 249588), (108, 164081), (142, 124794), (213, 83196), (284, 62397), (426, 41598), (639, 27732), (852, 20799), (1278, 13866), (1917, 9244), (2311, 7668), (2556, 6933), (3834, 4622)]