21754260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10987}}^1$

素因数の和:11013

約数の個数: 72

約数和(自身を含む): 71993376

約数和(自身を除く): 50239116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10987, 21974, 32961, 43948, 54935, 65922, 98883, 109870, 120857, 131844, 164805, 197766, 219740, 241714, 329610, 362571, 395532, 483428, 494415, 604285, 659220, 725142, 988830, 1087713, 1208570, 1450284, 1812855, 1977660, 2175426, 2417140, 3625710, 4350852, 5438565, 7251420, 10877130, 21754260]

約数ペア:

[(1, 21754260), (2, 10877130), (3, 7251420), (4, 5438565), (5, 4350852), (6, 3625710), (9, 2417140), (10, 2175426), (11, 1977660), (12, 1812855), (15, 1450284), (18, 1208570), (20, 1087713), (22, 988830), (30, 725142), (33, 659220), (36, 604285), (44, 494415), (45, 483428), (55, 395532), (60, 362571), (66, 329610), (90, 241714), (99, 219740), (110, 197766), (132, 164805), (165, 131844), (180, 120857), (198, 109870), (220, 98883), (330, 65922), (396, 54935), (495, 43948), (660, 32961), (990, 21974), (1980, 10987)]