19318990

素因数分解:

$2^1\times 5^1\times {\mathrm{619}}^1\times {\mathrm{3121}}^1$

素因数の和:3747

約数の個数: 16

約数和(自身を含む): 34841520

約数和(自身を除く): 15522530

約数列:

[1, 2, 5, 10, 619, 1238, 3095, 3121, 6190, 6242, 15605, 31210, 1931899, 3863798, 9659495, 19318990]

約数ペア:

[(1, 19318990), (2, 9659495), (5, 3863798), (10, 1931899), (619, 31210), (1238, 15605), (3095, 6242), (3121, 6190)]