21451320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5417}}^1$

素因数の和:5445

約数の個数: 96

約数和(自身を含む): 76068720

約数和(自身を除く): 54617400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5417, 10834, 16251, 21668, 27085, 32502, 43336, 48753, 54170, 59587, 65004, 81255, 97506, 108340, 119174, 130008, 162510, 178761, 195012, 216680, 238348, 243765, 297935, 325020, 357522, 390024, 476696, 487530, 536283, 595870, 650040, 715044, 893805, 975060, 1072566, 1191740, 1430088, 1787610, 1950120, 2145132, 2383480, 2681415, 3575220, 4290264, 5362830, 7150440, 10725660, 21451320]

約数ペア:

[(1, 21451320), (2, 10725660), (3, 7150440), (4, 5362830), (5, 4290264), (6, 3575220), (8, 2681415), (9, 2383480), (10, 2145132), (11, 1950120), (12, 1787610), (15, 1430088), (18, 1191740), (20, 1072566), (22, 975060), (24, 893805), (30, 715044), (33, 650040), (36, 595870), (40, 536283), (44, 487530), (45, 476696), (55, 390024), (60, 357522), (66, 325020), (72, 297935), (88, 243765), (90, 238348), (99, 216680), (110, 195012), (120, 178761), (132, 162510), (165, 130008), (180, 119174), (198, 108340), (220, 97506), (264, 81255), (330, 65004), (360, 59587), (396, 54170), (440, 48753), (495, 43336), (660, 32502), (792, 27085), (990, 21668), (1320, 16251), (1980, 10834), (3960, 5417)]