20842395

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{4051}}^1$

素因数の和:4080

約数の個数: 32

約数和(自身を含む): 38899200

約数和(自身を除く): 18056805

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 4051, 5145, 12153, 20255, 28357, 60765, 85071, 141785, 198499, 425355, 595497, 992495, 1389493, 2977485, 4168479, 6947465, 20842395]

約数ペア:

[(1, 20842395), (3, 6947465), (5, 4168479), (7, 2977485), (15, 1389493), (21, 992495), (35, 595497), (49, 425355), (105, 198499), (147, 141785), (245, 85071), (343, 60765), (735, 28357), (1029, 20255), (1715, 12153), (4051, 5145)]