18690908

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{743}}^1$

素因数の和:1097

約数の個数: 24

約数和(自身を含む): 34581120

約数和(自身を除く): 15890212

約数列:

[1, 2, 4, 19, 38, 76, 331, 662, 743, 1324, 1486, 2972, 6289, 12578, 14117, 25156, 28234, 56468, 245933, 491866, 983732, 4672727, 9345454, 18690908]

約数ペア:

[(1, 18690908), (2, 9345454), (4, 4672727), (19, 983732), (38, 491866), (76, 245933), (331, 56468), (662, 28234), (743, 25156), (1324, 14117), (1486, 12578), (2972, 6289)]