21987252

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{87251}}^1$

素因数の和:87268

約数の個数: 36

約数和(自身を含む): 63519456

約数和(自身を除く): 41532204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 87251, 174502, 261753, 349004, 523506, 610757, 785259, 1047012, 1221514, 1570518, 1832271, 2443028, 3141036, 3664542, 5496813, 7329084, 10993626, 21987252]

約数ペア:

[(1, 21987252), (2, 10993626), (3, 7329084), (4, 5496813), (6, 3664542), (7, 3141036), (9, 2443028), (12, 1832271), (14, 1570518), (18, 1221514), (21, 1047012), (28, 785259), (36, 610757), (42, 523506), (63, 349004), (84, 261753), (126, 174502), (252, 87251)]