21418485

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{479}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 16182795

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 271, 479, 813, 1355, 1437, 2395, 2981, 4065, 5269, 7185, 8943, 14905, 15807, 26345, 44715, 79035, 129809, 389427, 649045, 1427899, 1947135, 4283697, 7139495, 21418485]

約数ペア:

[(1, 21418485), (3, 7139495), (5, 4283697), (11, 1947135), (15, 1427899), (33, 649045), (55, 389427), (165, 129809), (271, 79035), (479, 44715), (813, 26345), (1355, 15807), (1437, 14905), (2395, 8943), (2981, 7185), (4065, 5269)]