21431133

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 31842720

約数和(自身を除く): 10411587

約数列:

[1, 3, 9, 53, 159, 179, 251, 477, 537, 753, 1611, 2259, 9487, 13303, 28461, 39909, 44929, 85383, 119727, 134787, 404361, 2381237, 7143711, 21431133]

約数ペア:

[(1, 21431133), (3, 7143711), (9, 2381237), (53, 404361), (159, 134787), (179, 119727), (251, 85383), (477, 44929), (537, 39909), (753, 28461), (1611, 13303), (2259, 9487)]