1978641

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1$

素因数の和:83

約数の個数: 48

約数和(自身を含む): 3657600

約数和(自身を除く): 1678959

約数列:

[1, 3, 7, 9, 19, 21, 27, 29, 57, 63, 87, 133, 171, 189, 203, 261, 361, 399, 513, 551, 609, 783, 1083, 1197, 1653, 1827, 2527, 3249, 3591, 3857, 4959, 5481, 7581, 9747, 10469, 11571, 14877, 22743, 31407, 34713, 68229, 73283, 94221, 104139, 219849, 282663, 659547, 1978641]

約数ペア:

[(1, 1978641), (3, 659547), (7, 282663), (9, 219849), (19, 104139), (21, 94221), (27, 73283), (29, 68229), (57, 34713), (63, 31407), (87, 22743), (133, 14877), (171, 11571), (189, 10469), (203, 9747), (261, 7581), (361, 5481), (399, 4959), (513, 3857), (551, 3591), (609, 3249), (783, 2527), (1083, 1827), (1197, 1653)]