261129039

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 367524864

約数和(自身を除く): 106395825

約数列:

[1, 3, 47, 53, 83, 141, 159, 249, 421, 1263, 2491, 3901, 4399, 7473, 11703, 13197, 19787, 22313, 34943, 59361, 66939, 104829, 206753, 620259, 1048711, 1642321, 1851979, 3146133, 4926963, 5555937, 87043013, 261129039]

約数ペア:

[(1, 261129039), (3, 87043013), (47, 5555937), (53, 4926963), (83, 3146133), (141, 1851979), (159, 1642321), (249, 1048711), (421, 620259), (1263, 206753), (2491, 104829), (3901, 66939), (4399, 59361), (7473, 34943), (11703, 22313), (13197, 19787)]