19129220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86951}}^1$

素因数の和:86971

約数の個数: 24

約数和(自身を含む): 43823808

約数和(自身を除く): 24694588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86951, 173902, 347804, 434755, 869510, 956461, 1739020, 1912922, 3825844, 4782305, 9564610, 19129220]

約数ペア:

[(1, 19129220), (2, 9564610), (4, 4782305), (5, 3825844), (10, 1912922), (11, 1739020), (20, 956461), (22, 869510), (44, 434755), (55, 347804), (110, 173902), (220, 86951)]