21029901

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 31363200

約数和(自身を除く): 10333299

約数列:

[1, 3, 17, 29, 51, 59, 87, 177, 241, 493, 723, 1003, 1479, 1711, 3009, 4097, 5133, 6989, 12291, 14219, 20967, 29087, 42657, 87261, 118813, 241723, 356439, 412351, 725169, 1237053, 7009967, 21029901]

約数ペア:

[(1, 21029901), (3, 7009967), (17, 1237053), (29, 725169), (51, 412351), (59, 356439), (87, 241723), (177, 118813), (241, 87261), (493, 42657), (723, 29087), (1003, 20967), (1479, 14219), (1711, 12291), (3009, 6989), (4097, 5133)]