21675438

素因数分解:

$2^1\times 3^4\times {\mathrm{67}}^1\times {\mathrm{1997}}^1$

素因数の和:2078

約数の個数: 40

約数和(自身を含む): 49318632

約数和(自身を除く): 27643194

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 81, 134, 162, 201, 402, 603, 1206, 1809, 1997, 3618, 3994, 5427, 5991, 10854, 11982, 17973, 35946, 53919, 107838, 133799, 161757, 267598, 323514, 401397, 802794, 1204191, 2408382, 3612573, 7225146, 10837719, 21675438]

約数ペア:

[(1, 21675438), (2, 10837719), (3, 7225146), (6, 3612573), (9, 2408382), (18, 1204191), (27, 802794), (54, 401397), (67, 323514), (81, 267598), (134, 161757), (162, 133799), (201, 107838), (402, 53919), (603, 35946), (1206, 17973), (1809, 11982), (1997, 10854), (3618, 5991), (3994, 5427)]