21396420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39623}}^1$

素因数の和:39641

約数の個数: 48

約数和(自身を含む): 66568320

約数和(自身を除く): 45171900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39623, 79246, 118869, 158492, 198115, 237738, 356607, 396230, 475476, 594345, 713214, 792460, 1069821, 1188690, 1426428, 1783035, 2139642, 2377380, 3566070, 4279284, 5349105, 7132140, 10698210, 21396420]

約数ペア:

[(1, 21396420), (2, 10698210), (3, 7132140), (4, 5349105), (5, 4279284), (6, 3566070), (9, 2377380), (10, 2139642), (12, 1783035), (15, 1426428), (18, 1188690), (20, 1069821), (27, 792460), (30, 713214), (36, 594345), (45, 475476), (54, 396230), (60, 356607), (90, 237738), (108, 198115), (135, 158492), (180, 118869), (270, 79246), (540, 39623)]