18716691

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 30553600

約数和(自身を除く): 11836909

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 769, 1159, 1281, 2307, 3477, 5383, 8113, 14611, 16149, 24339, 43833, 46909, 102277, 140727, 306831, 328363, 891271, 985089, 2673813, 6238897, 18716691]

約数ペア:

[(1, 18716691), (3, 6238897), (7, 2673813), (19, 985089), (21, 891271), (57, 328363), (61, 306831), (133, 140727), (183, 102277), (399, 46909), (427, 43833), (769, 24339), (1159, 16149), (1281, 14611), (2307, 8113), (3477, 5383)]