21251340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10733}}^1$

素因数の和:10759

約数の個数: 72

約数和(自身を含む): 70329168

約数和(自身を除く): 49077828

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, 10733, 21466, 32199, 42932, 53665, 64398, 96597, 107330, 118063, 128796, 160995, 193194, 214660, 236126, 321990, 354189, 386388, 472252, 482985, 590315, 643980, 708378, 965970, 1062567, 1180630, 1416756, 1770945, 1931940, 2125134, 2361260, 3541890, 4250268, 5312835, 7083780, 10625670, 21251340]

約数ペア:

[(1, 21251340), (2, 10625670), (3, 7083780), (4, 5312835), (5, 4250268), (6, 3541890), (9, 2361260), (10, 2125134), (11, 1931940), (12, 1770945), (15, 1416756), (18, 1180630), (20, 1062567), (22, 965970), (30, 708378), (33, 643980), (36, 590315), (44, 482985), (45, 472252), (55, 386388), (60, 354189), (66, 321990), (90, 236126), (99, 214660), (110, 193194), (132, 160995), (165, 128796), (180, 118063), (198, 107330), (220, 96597), (330, 64398), (396, 53665), (495, 42932), (660, 32199), (990, 21466), (1980, 10733)]