15207675721

素因数分解:

$7^3\times {\mathrm{139}}^1\times {\mathrm{307}}^1\times {\mathrm{1039}}^1$

素因数の和:1506

約数の個数: 32

約数和(自身を含む): 17937920000

約数和(自身を除く): 2730244279

約数列:

[1, 7, 49, 139, 307, 343, 973, 1039, 2149, 6811, 7273, 15043, 42673, 47677, 50911, 105301, 144421, 298711, 318973, 356377, 1010947, 2090977, 2232811, 7076629, 14636839, 15629677, 44337247, 49536403, 109407739, 310360729, 2172525103, 15207675721]

約数ペア:

[(1, 15207675721), (7, 2172525103), (49, 310360729), (139, 109407739), (307, 49536403), (343, 44337247), (973, 15629677), (1039, 14636839), (2149, 7076629), (6811, 2232811), (7273, 2090977), (15043, 1010947), (42673, 356377), (47677, 318973), (50911, 298711), (105301, 144421)]