21060872

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5297}}^1$

素因数の和:5381

約数の個数: 32

約数和(自身を含む): 45774720

約数和(自身を除く): 24713848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5297, 10594, 21188, 37079, 42376, 74158, 148316, 296632, 376087, 752174, 1504348, 2632609, 3008696, 5265218, 10530436, 21060872]

約数ペア:

[(1, 21060872), (2, 10530436), (4, 5265218), (7, 3008696), (8, 2632609), (14, 1504348), (28, 752174), (56, 376087), (71, 296632), (142, 148316), (284, 74158), (497, 42376), (568, 37079), (994, 21188), (1988, 10594), (3976, 5297)]