20121654

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{769}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 47401200

約数和(自身を除く): 27279546

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 89, 98, 147, 178, 267, 294, 534, 623, 769, 1246, 1538, 1869, 2307, 3738, 4361, 4614, 5383, 8722, 10766, 13083, 16149, 26166, 32298, 37681, 68441, 75362, 113043, 136882, 205323, 226086, 410646, 479087, 958174, 1437261, 2874522, 3353609, 6707218, 10060827, 20121654]

約数ペア:

[(1, 20121654), (2, 10060827), (3, 6707218), (6, 3353609), (7, 2874522), (14, 1437261), (21, 958174), (42, 479087), (49, 410646), (89, 226086), (98, 205323), (147, 136882), (178, 113043), (267, 75362), (294, 68441), (534, 37681), (623, 32298), (769, 26166), (1246, 16149), (1538, 13083), (1869, 10766), (2307, 8722), (3738, 5383), (4361, 4614)]