19419860

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3583}}^1$

素因数の和:3863

約数の個数: 24

約数和(自身を含む): 40943616

約数和(自身を除く): 21523756

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3583, 5420, 7166, 14332, 17915, 35830, 71660, 970993, 1941986, 3883972, 4854965, 9709930, 19419860]

約数ペア:

[(1, 19419860), (2, 9709930), (4, 4854965), (5, 3883972), (10, 1941986), (20, 970993), (271, 71660), (542, 35830), (1084, 17915), (1355, 14332), (2710, 7166), (3583, 5420)]