40144419

素因数分解:

$3^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{991}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 66440192

約数和(自身を除く): 26295773

約数列:

[1, 3, 7, 9, 21, 63, 643, 991, 1929, 2973, 4501, 5787, 6937, 8919, 13503, 20811, 40509, 62433, 637213, 1911639, 4460491, 5734917, 13381473, 40144419]

約数ペア:

[(1, 40144419), (3, 13381473), (7, 5734917), (9, 4460491), (21, 1911639), (63, 637213), (643, 62433), (991, 40509), (1929, 20811), (2973, 13503), (4501, 8919), (5787, 6937)]