19988490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21493}}^1$

素因数の和:21534

約数の個数: 32

約数和(自身を含む): 49522176

約数和(自身を除く): 29533686

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 21493, 42986, 64479, 107465, 128958, 214930, 322395, 644790, 666283, 1332566, 1998849, 3331415, 3997698, 6662830, 9994245, 19988490]

約数ペア:

[(1, 19988490), (2, 9994245), (3, 6662830), (5, 3997698), (6, 3331415), (10, 1998849), (15, 1332566), (30, 666283), (31, 644790), (62, 322395), (93, 214930), (155, 128958), (186, 107465), (310, 64479), (465, 42986), (930, 21493)]