20815164

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{5209}}^1$

素因数の和:5259

約数の個数: 48

約数和(自身を含む): 55434400

約数和(自身を除く): 34619236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 5209, 10418, 15627, 20836, 31254, 46881, 62508, 93762, 140643, 187524, 192733, 281286, 385466, 562572, 578199, 770932, 1156398, 1734597, 2312796, 3469194, 5203791, 6938388, 10407582, 20815164]

約数ペア:

[(1, 20815164), (2, 10407582), (3, 6938388), (4, 5203791), (6, 3469194), (9, 2312796), (12, 1734597), (18, 1156398), (27, 770932), (36, 578199), (37, 562572), (54, 385466), (74, 281286), (108, 192733), (111, 187524), (148, 140643), (222, 93762), (333, 62508), (444, 46881), (666, 31254), (999, 20836), (1332, 15627), (1998, 10418), (3996, 5209)]