19916085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 39168000

約数和(自身を除く): 19251915

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 67, 95, 105, 133, 149, 201, 285, 335, 399, 447, 469, 665, 745, 1005, 1043, 1273, 1407, 1995, 2235, 2345, 2831, 3129, 3819, 5215, 6365, 7035, 8493, 8911, 9983, 14155, 15645, 19095, 19817, 26733, 29949, 42465, 44555, 49915, 59451, 69881, 99085, 133665, 149745, 189677, 209643, 297255, 349405, 569031, 948385, 1048215, 1327739, 2845155, 3983217, 6638695, 19916085]

約数ペア:

[(1, 19916085), (3, 6638695), (5, 3983217), (7, 2845155), (15, 1327739), (19, 1048215), (21, 948385), (35, 569031), (57, 349405), (67, 297255), (95, 209643), (105, 189677), (133, 149745), (149, 133665), (201, 99085), (285, 69881), (335, 59451), (399, 49915), (447, 44555), (469, 42465), (665, 29949), (745, 26733), (1005, 19817), (1043, 19095), (1273, 15645), (1407, 14155), (1995, 9983), (2235, 8911), (2345, 8493), (2831, 7035), (3129, 6365), (3819, 5215)]