19938885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1697

約数の個数: 32

約数和(自身を含む): 34383360

約数和(自身を除く): 14444475

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 645, 817, 1627, 2451, 4085, 4881, 8135, 12255, 24405, 30913, 69961, 92739, 154565, 209883, 349805, 463695, 1049415, 1329259, 3987777, 6646295, 19938885]

約数ペア:

[(1, 19938885), (3, 6646295), (5, 3987777), (15, 1329259), (19, 1049415), (43, 463695), (57, 349805), (95, 209883), (129, 154565), (215, 92739), (285, 69961), (645, 30913), (817, 24405), (1627, 12255), (2451, 8135), (4085, 4881)]