19238668

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2131}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 35160944

約数和(自身を除く): 15922276

約数列:

[1, 2, 4, 37, 61, 74, 122, 148, 244, 2131, 2257, 4262, 4514, 8524, 9028, 78847, 129991, 157694, 259982, 315388, 519964, 4809667, 9619334, 19238668]

約数ペア:

[(1, 19238668), (2, 9619334), (4, 4809667), (37, 519964), (61, 315388), (74, 259982), (122, 157694), (148, 129991), (244, 78847), (2131, 9028), (2257, 8524), (4262, 4514)]