19778724

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{78487}}^1$

素因数の和:78504

約数の個数: 36

約数和(自身を含む): 57139264

約数和(自身を除く): 37360540

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 78487, 156974, 235461, 313948, 470922, 549409, 706383, 941844, 1098818, 1412766, 1648227, 2197636, 2825532, 3296454, 4944681, 6592908, 9889362, 19778724]

約数ペア:

[(1, 19778724), (2, 9889362), (3, 6592908), (4, 4944681), (6, 3296454), (7, 2825532), (9, 2197636), (12, 1648227), (14, 1412766), (18, 1098818), (21, 941844), (28, 706383), (36, 549409), (42, 470922), (63, 313948), (84, 235461), (126, 156974), (252, 78487)]