19993016

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4243}}^1$

素因数の和:4299

約数の個数: 32

約数和(自身を含む): 40742400

約数和(自身を除く): 20749384

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4243, 4712, 8486, 16972, 33944, 80617, 131533, 161234, 263066, 322468, 526132, 644936, 1052264, 2499127, 4998254, 9996508, 19993016]

約数ペア:

[(1, 19993016), (2, 9996508), (4, 4998254), (8, 2499127), (19, 1052264), (31, 644936), (38, 526132), (62, 322468), (76, 263066), (124, 161234), (152, 131533), (248, 80617), (589, 33944), (1178, 16972), (2356, 8486), (4243, 4712)]