19918542

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{733}}^1$

素因数の和:1392

約数の個数: 32

約数和(自身を含む): 45660672

約数和(自身を除く): 25742130

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 647, 733, 1294, 1466, 1941, 2199, 3882, 4398, 4529, 5131, 9058, 10262, 13587, 15393, 27174, 30786, 474251, 948502, 1422753, 2845506, 3319757, 6639514, 9959271, 19918542]

約数ペア:

[(1, 19918542), (2, 9959271), (3, 6639514), (6, 3319757), (7, 2845506), (14, 1422753), (21, 948502), (42, 474251), (647, 30786), (733, 27174), (1294, 15393), (1466, 13587), (1941, 10262), (2199, 9058), (3882, 5131), (4398, 4529)]