21322140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50767}}^1$

素因数の和:50786

約数の個数: 48

約数和(自身を含む): 68232192

約数和(自身を除く): 46910052

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50767, 101534, 152301, 203068, 253835, 304602, 355369, 507670, 609204, 710738, 761505, 1015340, 1066107, 1421476, 1523010, 1776845, 2132214, 3046020, 3553690, 4264428, 5330535, 7107380, 10661070, 21322140]

約数ペア:

[(1, 21322140), (2, 10661070), (3, 7107380), (4, 5330535), (5, 4264428), (6, 3553690), (7, 3046020), (10, 2132214), (12, 1776845), (14, 1523010), (15, 1421476), (20, 1066107), (21, 1015340), (28, 761505), (30, 710738), (35, 609204), (42, 507670), (60, 355369), (70, 304602), (84, 253835), (105, 203068), (140, 152301), (210, 101534), (420, 50767)]