21229560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1787}}^1$

素因数の和:1818

約数の個数: 128

約数和(自身を含む): 77241600

約数和(自身を除く): 56012040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 216, 220, 264, 270, 297, 330, 360, 396, 440, 495, 540, 594, 660, 792, 990, 1080, 1188, 1320, 1485, 1787, 1980, 2376, 2970, 3574, 3960, 5361, 5940, 7148, 8935, 10722, 11880, 14296, 16083, 17870, 19657, 21444, 26805, 32166, 35740, 39314, 42888, 48249, 53610, 58971, 64332, 71480, 78628, 80415, 96498, 98285, 107220, 117942, 128664, 157256, 160830, 176913, 192996, 196570, 214440, 235884, 241245, 294855, 321660, 353826, 385992, 393140, 471768, 482490, 530739, 589710, 643320, 707652, 786280, 884565, 964980, 1061478, 1179420, 1415304, 1769130, 1929960, 2122956, 2358840, 2653695, 3538260, 4245912, 5307390, 7076520, 10614780, 21229560]

約数ペア:

[(1, 21229560), (2, 10614780), (3, 7076520), (4, 5307390), (5, 4245912), (6, 3538260), (8, 2653695), (9, 2358840), (10, 2122956), (11, 1929960), (12, 1769130), (15, 1415304), (18, 1179420), (20, 1061478), (22, 964980), (24, 884565), (27, 786280), (30, 707652), (33, 643320), (36, 589710), (40, 530739), (44, 482490), (45, 471768), (54, 393140), (55, 385992), (60, 353826), (66, 321660), (72, 294855), (88, 241245), (90, 235884), (99, 214440), (108, 196570), (110, 192996), (120, 176913), (132, 160830), (135, 157256), (165, 128664), (180, 117942), (198, 107220), (216, 98285), (220, 96498), (264, 80415), (270, 78628), (297, 71480), (330, 64332), (360, 58971), (396, 53610), (440, 48249), (495, 42888), (540, 39314), (594, 35740), (660, 32166), (792, 26805), (990, 21444), (1080, 19657), (1188, 17870), (1320, 16083), (1485, 14296), (1787, 11880), (1980, 10722), (2376, 8935), (2970, 7148), (3574, 5940), (3960, 5361)]