19007780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86399}}^1$

素因数の和:86419

約数の個数: 24

約数和(自身を含む): 43545600

約数和(自身を除く): 24537820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86399, 172798, 345596, 431995, 863990, 950389, 1727980, 1900778, 3801556, 4751945, 9503890, 19007780]

約数ペア:

[(1, 19007780), (2, 9503890), (4, 4751945), (5, 3801556), (10, 1900778), (11, 1727980), (20, 950389), (22, 863990), (44, 431995), (55, 345596), (110, 172798), (220, 86399)]