19894215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 35661024

約数和(自身を除く): 15766809

約数列:

[1, 3, 5, 11, 15, 33, 55, 97, 113, 121, 165, 291, 339, 363, 485, 565, 605, 1067, 1243, 1455, 1695, 1815, 3201, 3729, 5335, 6215, 10961, 11737, 13673, 16005, 18645, 32883, 35211, 41019, 54805, 58685, 68365, 120571, 164415, 176055, 205095, 361713, 602855, 1326281, 1808565, 3978843, 6631405, 19894215]

約数ペア:

[(1, 19894215), (3, 6631405), (5, 3978843), (11, 1808565), (15, 1326281), (33, 602855), (55, 361713), (97, 205095), (113, 176055), (121, 164415), (165, 120571), (291, 68365), (339, 58685), (363, 54805), (485, 41019), (565, 35211), (605, 32883), (1067, 18645), (1243, 16005), (1455, 13673), (1695, 11737), (1815, 10961), (3201, 6215), (3729, 5335)]