31221081

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 49617360

約数和(自身を除く): 18396279

約数列:

[1, 3, 9, 29, 37, 53, 61, 87, 111, 159, 183, 261, 333, 477, 549, 1073, 1537, 1769, 1961, 2257, 3219, 3233, 4611, 5307, 5883, 6771, 9657, 9699, 13833, 15921, 17649, 20313, 29097, 56869, 65453, 93757, 119621, 170607, 196359, 281271, 358863, 511821, 589077, 843813, 1076589, 3469009, 10407027, 31221081]

約数ペア:

[(1, 31221081), (3, 10407027), (9, 3469009), (29, 1076589), (37, 843813), (53, 589077), (61, 511821), (87, 358863), (111, 281271), (159, 196359), (183, 170607), (261, 119621), (333, 93757), (477, 65453), (549, 56869), (1073, 29097), (1537, 20313), (1769, 17649), (1961, 15921), (2257, 13833), (3219, 9699), (3233, 9657), (4611, 6771), (5307, 5883)]