19913409

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{829}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 30686760

約数和(自身を除く): 10773351

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 829, 1413, 2487, 2669, 7461, 8007, 14093, 24021, 42279, 126837, 130153, 390459, 1171377, 2212601, 6637803, 19913409]

約数ペア:

[(1, 19913409), (3, 6637803), (9, 2212601), (17, 1171377), (51, 390459), (153, 130153), (157, 126837), (471, 42279), (829, 24021), (1413, 14093), (2487, 8007), (2669, 7461)]