18891789

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{463}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 30289920

約数和(自身を除く): 11398131

約数列:

[1, 3, 7, 21, 29, 67, 87, 201, 203, 463, 469, 609, 1389, 1407, 1943, 3241, 5829, 9723, 13427, 13601, 31021, 40281, 40803, 93063, 93989, 217147, 281967, 651441, 899609, 2698827, 6297263, 18891789]

約数ペア:

[(1, 18891789), (3, 6297263), (7, 2698827), (21, 899609), (29, 651441), (67, 281967), (87, 217147), (201, 93989), (203, 93063), (463, 40803), (469, 40281), (609, 31021), (1389, 13601), (1407, 13427), (1943, 9723), (3241, 5829)]