28638918

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20663}}^1$

素因数の和:20689

約数の個数: 48

約数和(自身を含む): 77366016

約数和(自身を除く): 48727098

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 20663, 41326, 61989, 123978, 144641, 185967, 227293, 289282, 371934, 433923, 454586, 681879, 867846, 1301769, 1363758, 1591051, 2045637, 2603538, 3182102, 4091274, 4773153, 9546306, 14319459, 28638918]

約数ペア:

[(1, 28638918), (2, 14319459), (3, 9546306), (6, 4773153), (7, 4091274), (9, 3182102), (11, 2603538), (14, 2045637), (18, 1591051), (21, 1363758), (22, 1301769), (33, 867846), (42, 681879), (63, 454586), (66, 433923), (77, 371934), (99, 289282), (126, 227293), (154, 185967), (198, 144641), (231, 123978), (462, 61989), (693, 41326), (1386, 20663)]