19890897

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 30307200

約数和(自身を除く): 10416303

約数列:

[1, 3, 13, 29, 39, 43, 87, 129, 377, 409, 559, 1131, 1227, 1247, 1677, 3741, 5317, 11861, 15951, 16211, 17587, 35583, 48633, 52761, 154193, 228631, 462579, 510023, 685893, 1530069, 6630299, 19890897]

約数ペア:

[(1, 19890897), (3, 6630299), (13, 1530069), (29, 685893), (39, 510023), (43, 462579), (87, 228631), (129, 154193), (377, 52761), (409, 48633), (559, 35583), (1131, 17587), (1227, 16211), (1247, 15951), (1677, 11861), (3741, 5317)]