19291821

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 29399040

約数和(自身を除く): 10107219

約数列:

[1, 3, 17, 19, 43, 51, 57, 129, 323, 463, 731, 817, 969, 1389, 2193, 2451, 7871, 8797, 13889, 19909, 23613, 26391, 41667, 59727, 149549, 338453, 378271, 448647, 1015359, 1134813, 6430607, 19291821]

約数ペア:

[(1, 19291821), (3, 6430607), (17, 1134813), (19, 1015359), (43, 448647), (51, 378271), (57, 338453), (129, 149549), (323, 59727), (463, 41667), (731, 26391), (817, 23613), (969, 19909), (1389, 13889), (2193, 8797), (2451, 7871)]